What are the assumptions of the kinetic gas theory?  A. Gas molecules do not attract each other  B. The volume of the gas molecules is negligible compared to the volume of the gas  C. The molecules behave like hard spheres  D. All of the above

What are the assumptions of the kinetic gas theory?  A. Gas molecules do not attract each other  B. The volume of the gas molecules is negligible compared to the volume of the gas  C. The molecules behave like hard spheres  D. All of the above
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All of the above
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According to kinetic theory of gases, the absolute zero temperature is attained when  (a) volume of the gas is zero  (b) pressure of the gas is zero  (c) kinetic energy of the molecules is zero  (d) specific heat of gas is zero  (e) mass is zero.

Description : According to kinetic theory of gases, the absolute zero temperature is attained when  (a) volume of the gas is zero  (b) pressure of the gas is zero  (c) kinetic energy of the molecules is zero  (d) specific heat of gas is zero  (e) mass is zero.

Last Answer : Answer : c

Which of the following statements is TRUE for an ideal gas, but not for a real gas?  A. PV = nRT  B. An increase in temperature causes an increase in the kinetic energy of the gas  C. The total volume of molecules on a gas is nearly the same as the volume of the gas as a whole  D. No attractive forces exists between the molecule of a gas

Description : Which of the following statements is TRUE for an ideal gas, but not for a real gas?  A. PV = nRT  B. An increase in temperature causes an increase in the kinetic energy of the gas  C. The ... same as the volume of the gas as a whole  D. No attractive forces exists between the molecule of a gas

Last Answer : PV = nRT

The pressure exerted by an ideal gas is __________ of the kinetic energy of all the molecules contained in a unit volume of gas.  A.one-half  B.one-third  C.two-third  D.three-fourth

Description : The pressure exerted by an ideal gas is __________ of the kinetic energy of all the molecules contained in a unit volume of gas.  A.one-half  B.one-third  C.two-third  D.three-fourth

Last Answer : Answer: C

Kinetic theory of gases assumes that the collisions between the molecules are  (a) perfectly elastic  (b) perfectly inelastic  (c) partly elastic  (d) partly inelastic  (e) partly elastic and partly inelastic.

Description : Kinetic theory of gases assumes that the collisions between the molecules are  (a) perfectly elastic  (b) perfectly inelastic  (c) partly elastic  (d) partly inelastic  (e) partly elastic and partly inelastic.

Last Answer : Answer : a

The molecules of a gas moving through space with some velocity possesses what kind of energy?  A. Translational energy  B. Spin energy  C. Rotational kinetic energy  D. Sensible energy

Description : The molecules of a gas moving through space with some velocity possesses what kind of energy?  A. Translational energy  B. Spin energy  C. Rotational kinetic energy  D. Sensible energy

Last Answer : Translational energy

The kinetic energy of molecules of a gas becomes zero at absolute zero temperature.  A. Agree  B. Disagree

Description : The kinetic energy of molecules of a gas becomes zero at absolute zero temperature.  A. Agree  B. Disagree

Last Answer : Answer: A

Temperature of a gas is produced due to  (a) its heating value  (b) kinetic energy of molecules  (c) repulsion of molecules  (d) attraction of molecules  (e) surface tension of molecules.

Description : Temperature of a gas is produced due to  (a) its heating value  (b) kinetic energy of molecules  (c) repulsion of molecules  (d) attraction of molecules  (e) surface tension of molecules.

Last Answer : Answer : b

The pressure’of a gas in terms of its mean kinetic energy per unit volume E is equal to  (a) E/3  (b) E/2  (c) 3E/4  (d)2E/3  (e) 5E/4.

Description : The pressure’of a gas in terms of its mean kinetic energy per unit volume E is equal to  (a) E/3  (b) E/2  (c) 3E/4  (d)2E/3  (e) 5E/4.

Last Answer : Answer : d

_________ is the energy stored within a body or substance by virtue of the activity and configuration of its molecules.  a. Internal Energy  b. External Energy  c. Kinetic Energy  d. Potential Energy

Description : _________ is the energy stored within a body or substance by virtue of the activity and configuration of its molecules.  a. Internal Energy  b. External Energy  c. Kinetic Energy  d. Potential Energy

Last Answer : Internal Energy

The sum of energies of all the molecules in a system, energies that appear in several complex forms.  a. External Energy  b. Internal Energy  c. Kinetic Energy  d. None of the above

Description : The sum of energies of all the molecules in a system, energies that appear in several complex forms.  a. External Energy  b. Internal Energy  c. Kinetic Energy  d. None of the above

Last Answer : Internal Energy

_________ the very small KE still present in molecules at absolute zero temperature.  a. internal KE  b. Atomic kinetic energy  c. Zero-Point Energy  d. Subliminal Energy

Description : _________ the very small KE still present in molecules at absolute zero temperature.  a. internal KE  b. Atomic kinetic energy  c. Zero-Point Energy  d. Subliminal Energy

Last Answer : Zero-Point Energy

What refers to the portion of the internal energy of a system associated with the kinetic energies of the molecules?  A. Translational energy  B. Spin energy  C. Rotational kinetic energy  D. Sensible energy

Description : What refers to the portion of the internal energy of a system associated with the kinetic energies of the molecules?  A. Translational energy  B. Spin energy  C. Rotational kinetic energy  D. Sensible energy

Last Answer : Sensible energy

Kinetic energy of the molecules in terms of absolute temperature (T) is proportional to  (a) T  (b) j  (c) J2  (d) Vr  (e) 1/Vr.

Description : Kinetic energy of the molecules in terms of absolute temperature (T) is proportional to  (a) T  (b) j  (c) J2  (d) Vr  (e) 1/Vr.

Last Answer : Answer : a

To what conditions does a gas behave like an ideal gas?  a. low temperature and low pressure  b. low temperature and high pressure  c. high temperature and low pressure  d. high temperature and high pressure

Description : To what conditions does a gas behave like an ideal gas?  a. low temperature and low pressure  b. low temperature and high pressure  c. high temperature and low pressure  d. high temperature and high pressure

Last Answer : high temperature and low pressure

The volume of a gas is directly proportional to the number of molecules of the gas.  a. Ideal gas law  b. Boyle-Mariotte Law  c. Avogadro’s Hypothesis  d. Gay-Lussac’s Law of combining Volumes

Description : The volume of a gas is directly proportional to the number of molecules of the gas.  a. Ideal gas law  b. Boyle-Mariotte Law  c. Avogadro’s Hypothesis  d. Gay-Lussac’s Law of combining Volumes

Last Answer : Avogadro’s Hypothesis

An ideal gas as compared to a real gas at very high pressure occupies  (a) more volume  (b) less volume  (c) same volume  (d) unpredictable behaviour  (e) no such correlation.

Description : An ideal gas as compared to a real gas at very high pressure occupies  (a) more volume  (b) less volume  (c) same volume  (d) unpredictable behaviour  (e) no such correlation.

Last Answer : Answer : a

Is the amount of a substance that contains Avogadro’s number of atoms/molecules.  a. mass  b. matter  c. gram-mole  d. volume

Description : Is the amount of a substance that contains Avogadro’s number of atoms/molecules.  a. mass  b. matter  c. gram-mole  d. volume

Last Answer : gram-mole

According to Avogadro’s law, for a given pressure and temperature, each molecule of a gas  (a) occupies volume proportional to its molecular weight  (b) occupies volume proportional to its specific weight  (c) occupies volume inversely proportional to its molecular weight  (d) occupies volume inversely proportional to its specific weight  (e) occupies same volume.

Description : According to Avogadro's law, for a given pressure and temperature, each molecule of a gas  (a) occupies volume proportional to its molecular weight  (b) occupies volume proportional to its specific ...  (d) occupies volume inversely proportional to its specific weight  (e) occupies same volume.

Last Answer : Answer : e

If the Kelvin temperature of an ideal gas is doubled, what happens to the rms speed of the molecules in the gas?  a. it increases by a factor of square root of 2  b. it increases by a factor of 2  c. it increases by factor of 4  d. none of the above

Description : If the Kelvin temperature of an ideal gas is doubled, what happens to the rms speed of the molecules in the gas?  a. it increases by a factor of square root of 2  b. it increases by a factor of 2  c. it increases by factor of 4  d. none of the above

Last Answer : it increases by a factor of square root of 2

The energy associated with individual molecules in a gas, liquid or solid.  a. Specific Energy  b. Molecular Energy  c. Internal Energy  d. Phase Energy

Description : The energy associated with individual molecules in a gas, liquid or solid.  a. Specific Energy  b. Molecular Energy  c. Internal Energy  d. Phase Energy

Last Answer : Internal Energy

According to Avogadro’s law  A. the product of the gas constant and the molecular mass of an ideal gas is constant  B. the sum of partial pressure of the mixture of two gases is sum of the two  C. equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules  D. all of the above

Description : According to Avogadro's law  A. the product of the gas constant and the molecular mass of an ideal gas is constant  B. the sum of partial pressure of the mixture of two gases is sum of the ... all gases, at the same temperature and pressure, contain equal number of molecules  D. all of the above

Last Answer : Answer: C

In an isothermal process, the internal energy of gas molecules  (a) increases  (b) decreases  (c) remains constant  (d) may increase/decrease depending on the properties of gas  (e) shows unpredictable behaviour.

Description : In an isothermal process, the internal energy of gas molecules  (a) increases  (b) decreases  (c) remains constant  (d) may increase/decrease depending on the properties of gas  (e) shows unpredictable behaviour.

Last Answer : Answer : c

The energy that stored in a system as a result of its position in the earth’s gravitational field  a. elastic energy  b. kinetic energy  c. potential energy  d. flow energy

Description : The energy that stored in a system as a result of its position in the earth’s gravitational field  a. elastic energy  b. kinetic energy  c. potential energy  d. flow energy

Last Answer : potential energy

The combined mass of car and passengers travelling at 72 km/hr is 1500 kg. Find the kinetic energy of this combined mass. (Formula: K =mv2 / 2k )  a. 300 kJ  b. 200 kJ  c. 500 kJ  d. None of the above

Description : The combined mass of car and passengers travelling at 72 km/hr is 1500 kg. Find the kinetic energy of this combined mass. (Formula: K =mv2 / 2k )  a. 300 kJ  b. 200 kJ  c. 500 kJ  d. None of the above

Last Answer : 300 kJ

_________ is a measure of the average kinetic energy per molecule in a substance.  a. movement  b. temperature  c. heat  d. mass

Description : _________ is a measure of the average kinetic energy per molecule in a substance.  a. movement  b. temperature  c. heat  d. mass

Last Answer : temperature

What are the only two forms of energy interactions associated with a closed system?  A. Kinetic energy and heat  B. Heat transfer and work  C. Thermal energy and chemical energy  D. Latent energy and thermal energy

Description : What are the only two forms of energy interactions associated with a closed system?  A. Kinetic energy and heat  B. Heat transfer and work  C. Thermal energy and chemical energy  D. Latent energy and thermal energy

Last Answer : Heat transfer and work

The electrons which spins about its axis will possess what kind of energy?  A. Translational energy  B. Spin energy  C. Rotational kinetic energy  D. Sensible energy

Description : The electrons which spins about its axis will possess what kind of energy?  A. Translational energy  B. Spin energy  C. Rotational kinetic energy  D. Sensible energy

Last Answer : Spin energy

The electrons in an atom which rotate about the nucleus possess what kind of energy?  A. Translational energy  B. Spin energy  C. Rotational kinetic energy  D. Sensible energy

Description : The electrons in an atom which rotate about the nucleus possess what kind of energy?  A. Translational energy  B. Spin energy  C. Rotational kinetic energy  D. Sensible energy

Last Answer : Rotational kinetic energy

What form of energy refers to those a system possesses as a whole with respect to some outside reference frame, such as potential and kinetic energies?  A. Macroscopic form of energy  B. Microscopic form of energy  C. Internal energy  D. External energy

Description : What form of energy refers to those a system possesses as a whole with respect to some outside reference frame, such as potential and kinetic energies?  A. Macroscopic form of energy  B. Microscopic form of energy  C. Internal energy  D. External energy

Last Answer : Macroscopic form of energy

Which of the following items is not a path function  (a) heat  (b) work  (c) kinetic energy  (d) vdp  (e) thermal conductivity.

Description : Which of the following items is not a path function  (a) heat  (b) work  (c) kinetic energy  (d) vdp  (e) thermal conductivity.

Last Answer : Answer : e

Those substances which have so far not been resolved by any means into other substances of simpler form are called  A. elements  B. compounds  C. atoms  D. molecules

Description : Those substances which have so far not been resolved by any means into other substances of simpler form are called  A. elements  B. compounds  C. atoms  D. molecules

Last Answer : Answer: A

If both Stirling and Carnot cycles operate within the same temperature limits, then efficiency of Stirling cycle as compared to Carnot cycle  (a) more  (b) less  (c) equal  (d) depends on other factors  (e) none of the above.

Description : If both Stirling and Carnot cycles operate within the same temperature limits, then efficiency of Stirling cycle as compared to Carnot cycle  (a) more  (b) less  (c) equal  (d) depends on other factors  (e) none of the above.

Last Answer : Answer : c

The volume of a gas under constant pressure increases or decrease with temperature.  a. Gay- Lussac’s Law  b. Ideal Gas Law  c. Charles’ Law  d. Boyle’s Law

Description : The volume of a gas under constant pressure increases or decrease with temperature.  a. Gay- Lussac’s Law  b. Ideal Gas Law  c. Charles’ Law  d. Boyle’s Law

Last Answer : Charles’ Law

A law relating the pressure, temperature and volume of an ideal gas  a. Gay-Lussac’s Law  b. Ideal gas Law  c. Charles’ Law  d. Boyle’s Law

Description : A law relating the pressure, temperature and volume of an ideal gas  a. Gay-Lussac’s Law  b. Ideal gas Law  c. Charles’ Law  d. Boyle’s Law

Last Answer : Ideal gas Law

If the initial volume of an ideal gas is compressed to one-half its original volume and to twice its original temperature, the pressure:  a. doubles  b. halves  c. quadruples  d. triples

Description : If the initial volume of an ideal gas is compressed to one-half its original volume and to twice its original temperature, the pressure:  a. doubles  b. halves  c. quadruples  d. triples

Last Answer : quadruples

What Law states that the pressure of gas is inversely proportional to its volume at constant temperature?  a. Charles’ law  b. Gay-Lussac’s Law  c. Boyle’s Law  d. Dalton’s Law

Description : What Law states that the pressure of gas is inversely proportional to its volume at constant temperature?  a. Charles’ law  b. Gay-Lussac’s Law  c. Boyle’s Law  d. Dalton’s Law

Last Answer : Boyle’s Law

The volume of a confined gas is held constant, the pressure is directly proportional to the absolute temperature.  a. Charle’s Law  b. Boyle’s Law  c. Joule’s Law  d. Specific Heat

Description : The volume of a confined gas is held constant, the pressure is directly proportional to the absolute temperature.  a. Charle’s Law  b. Boyle’s Law  c. Joule’s Law  d. Specific Heat

Last Answer : Boyle’s Law

A Thermodynamic Term That refers to any fixed region in a space  a. Control Volume  b. Volume  c. Density  d. Natural Gas

Description : A Thermodynamic Term That refers to any fixed region in a space  a. Control Volume  b. Volume  c. Density  d. Natural Gas

Last Answer : Control Volume

The pressure of the confined gas is held constant, the volume directly proportional to the absolute temperature.  a. Charle’s Law  b. Boyle’s Law  c. Zeroth Law  d. Gas Law

Description : The pressure of the confined gas is held constant, the volume directly proportional to the absolute temperature.  a. Charle’s Law  b. Boyle’s Law  c. Zeroth Law  d. Gas Law

Last Answer : Charle’s Law

Gas being heated at constant volume is undergoing the process of.  a. isometric  b. specific heat  c. enthalpy  d. isothermal

Description : Gas being heated at constant volume is undergoing the process of.  a. isometric  b. specific heat  c. enthalpy  d. isothermal

Last Answer : isometric

“If the temperature o f a fixed quantity of a gas is held constant during a change of state, the volume varies inversely with the absolute pressure.  a. Charle’s Law  b. Boyle’s Law  c. Dalton’s Law  d. Amagat’s Law

Description : “If the temperature o f a fixed quantity of a gas is held constant during a change of state, the volume varies inversely with the absolute pressure.  a. Charle’s Law  b. Boyle’s Law  c. Dalton’s Law  d. Amagat’s Law

Last Answer : Boyle’s Law

The volume of a gas under standard atmospheric pressure & 76 cmHg is 200m³. What is the volume when pressure is 80 cmHg if the temperature is unchanged?  a) 180 in³  b) 170 in³  c) 160 in³  d) 190 in³ Formula: P2V2 = P1V1

Description : The volume of a gas under standard atmospheric pressure & 76 cmHg is 200m³. What is the volume when pressure is 80 cmHg if the temperature is unchanged?  a) 180 in³  b) 170 in³  c) 160 in³  d) 190 in³ Formula: P2V2 = P1V1

Last Answer : 190 in³

Assuming compression is according to the Law PV = C, Calculate the initial volume of the gas at a pressure of 2 bars w/c will occupy a volume of 6m³ when it is compressed to a pressure of 42 Bars.  a) 130m³  b) 136m³  c) 120m³  d) 126m³ Formula: P1V1/T1 =P2V2/T2

Description : Assuming compression is according to the Law PV = C, Calculate the initial volume of the gas at a pressure of 2 bars w/c will occupy a volume of 6m³ when it is compressed to a pressure of 42 Bars.  a) 130m³  b) 136m³  c) 120m³  d) 126m³ Formula: P1V1/T1 =P2V2/T2

Last Answer : 126m³

An ideal gas of volume 1liter and pressure 10 bar undergoes a quasistatic adiabatic expansion until the pressure drops to 1 bar. Assume γ to be 1.4 what is the final volume?  a. 3.18 l  b. 4.18 l  c. 5.18 l  d. 6.18 l

Description : An ideal gas of volume 1liter and pressure 10 bar undergoes a quasistatic adiabatic expansion until the pressure drops to 1 bar. Assume γ to be 1.4 what is the final volume?  a. 3.18 l  b. 4.18 l  c. 5.18 l  d. 6.18 l

Last Answer : 5.18 l

A gas having a volume of100 ft³ at 27ºC is expanded to 120 ft³by heated at constant pressure to what temperature has it been heated to have this new volume?  a. 87°C  b. 85°C  c. 76°C  d. 97°C t2= T2–T1

Description : A gas having a volume of100 ft³ at 27ºC is expanded to 120 ft³by heated at constant pressure to what temperature has it been heated to have this new volume?  a. 87°C  b. 85°C  c. 76°C  d. 97°C t2= T2–T1

Last Answer : 87°C

The volume of the gas held at constant pressure increases 4 cm² at 0°C to 5cm². What is the final pressure?  a. 68.65ºC  b. 68.25ºC  c. 70.01°C  d. 79.1ºC t2= T2–T1

Description : The volume of the gas held at constant pressure increases 4 cm² at 0°C to 5cm². What is the final pressure?  a. 68.65ºC  b. 68.25ºC  c. 70.01°C  d. 79.1ºC t2= T2–T1

Last Answer : 981 N

There are 1.36 kg of gas, for which R = 377 J/kg.k and k = 1.25, that undergo a nonflow constant volume process from p1 = 551.6 kPa and t1 = 60°C to p2 = 1655 kPa. During the process the gas is internally stirred and there are also added 105.5 kJ of heat. Determine t2. (Formula: T2= T1p2/ p1)  a. 999 K  b. 888 K  c. 456 K  d. One of the above

Description : There are 1.36 kg of gas, for which R = 377 J/kg.k and k = 1.25, that undergo a nonflow constant volume process from p1 = 551.6 kPa and t1 = 60°C to p2 = 1655 kPa. During the process the gas is internally stirred and ... (Formula: T2= T1p2/ p1)  a. 999 K  b. 888 K  c. 456 K  d. One of the above

Last Answer : 999 K

Gas is enclosed in a cylinder with a weighted piston as the stop boundary. The gas is heated and expands from a volume of 0.04 m^3 to 0.10 m^3 at a constant pressure of 200kPa.Calculate the work done by the system.  A. 8 kJ  B. 10 kJ  C.12 kJ  D.14 kJ Formula: W = p(V2-V1)

Description : Gas is enclosed in a cylinder with a weighted piston as the stop boundary. The gas is heated and expands from a volume of 0.04 m^3 to 0.10 m^3 at a constant pressure of 200kPa.Calculate the work done by the system.  A. 8 kJ  B. 10 kJ  C.12 kJ  D.14 kJ Formula: W = p(V2-V1)

Last Answer : 12 kJ

Twenty grams of oxygen gas are compressed at a constant temperature of 30 ˚C to 5%of their original volume. What work is done on the system.  A.824 cal  B.924 cal  C.944 cal  D.1124 cal Formula: W = -mRTln (V2/V1) Where R = (1.98 cal/gmole·K) (32 g/gmole)

Description : Twenty grams of oxygen gas are compressed at a constant temperature of 30 ˚C to 5%of their original volume. What work is done on the system.  A.824 cal  B.924 cal  C.944 cal  D.1124 cal Formula: W = -mRTln (V2/V1) Where R = (1.98 cal/gmole·K) (32 g/gmole)

Last Answer : 1124 cal

3.0 lbm of air are contained at 25 psia and 100 ˚F. Given that Rair = 53.35 ft-lbf/lbm- ˚F, what is the volume of the container?  A.10.7 ft^3  B.14.7 ft^3  C.15 ft^3  D.24.9 ft^3 Formula: use the ideal gas law pV = mRT T = (100 +460) ˚R V = mRT/p

Description : 3.0 lbm of air are contained at 25 psia and 100 ˚F. Given that Rair = 53.35 ft-lbf/lbm- ˚F, what is the volume of the container?  A.10.7 ft^3  B.14.7 ft^3  C.15 ft^3  D.24.9 ft^3 Formula: use the ideal gas law pV = mRT T = (100 +460) ˚R V = mRT/p

Last Answer : 24.9 ft^3