The “equation of state” refers to any equation that relates the ______ of the substance.  A. Pressure and temperature  B. Pressure, temperature and specific weight  C. Temperature and specific weight  D. Pressure, temperature and specific volume

The “equation of state” refers to any equation that relates the ______ of the substance.  A. Pressure and temperature  B. Pressure, temperature and specific weight  C. Temperature and specific weight  D. Pressure, temperature and specific volume
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Pressure, temperature and specific volume
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Description : What is constant for a substance that is considered “incompressible”?  A. Specific volume of density  B. Pressure  C. Temperature  D. All of the above

Last Answer : Specific volume of density

The mass of one mole of a substance in grams is known as ______.  A. Molar weight  B. Molar mass  C. Molar volume  D. Molar constant

Description : The mass of one mole of a substance in grams is known as ______.  A. Molar weight  B. Molar mass  C. Molar volume  D. Molar constant

Last Answer : Molar mass

The ______ of a substance is the amount of heat that must be added or removed from a unit mass of the substance to change its temperature by one degree.  A. Latent heat of fusion  B. Molar heat  C. Specific heat capacity  D. Specific heat

Description : The ______ of a substance is the amount of heat that must be added or removed from a unit mass of the substance to change its temperature by one degree.  A. Latent heat of fusion  B. Molar heat  C. Specific heat capacity  D. Specific heat

Last Answer : Specific heat capacity

Sum of the internal energy of a substance and the product of pressure and volume.  a. Specific Heat  b. Specific Gravity  c. Isolated System  d. Enthalpy

Description : Sum of the internal energy of a substance and the product of pressure and volume.  a. Specific Heat  b. Specific Gravity  c. Isolated System  d. Enthalpy

Last Answer : Enthalpy

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

According to Avogadro’s Hypothesis  (a) the molecular weights of all the perfect gases occupy the same volume under same conditions of pressure and temperature  (b) the sum of partial pressure of mixture of two gases is sum of the two  (c) product of the gas constant and the molecular weight of an ideal gas is constant  (d) gases have two values of specific heat  (e) all systems can be regarded as closed systems.

Description : According to Avogadro's Hypothesis  (a) the molecular weights of all the perfect gases occupy the same volume under same conditions of pressure and temperature  (b) the sum of partial pressure of ... gases have two values of specific heat  (e) all systems can be regarded as closed systems.

Last Answer : Answer : a

What refers to the pressure at which a pure substance changes phase at a given temperature?  A. Equilibrium pressure  B. Saturation pressure  C. Superheated pressure  D. Subcooled pressure

Description : What refers to the pressure at which a pure substance changes phase at a given temperature?  A. Equilibrium pressure  B. Saturation pressure  C. Superheated pressure  D. Subcooled pressure

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What refers to the temperature at which a pure substance changes phase at a given pressure?  A. Equilibrium temperature  B. Saturation temperature  C. Superheated temperature  D. Subcooled temperature

Description : What refers to the temperature at which a pure substance changes phase at a given pressure?  A. Equilibrium temperature  B. Saturation temperature  C. Superheated temperature  D. Subcooled temperature

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The temperatures of the ideal gas temperature scale are measured by using a ______.  A. Constant-volume gas thermometer  B. Constant-mass gas thermometer  C. Constant-temperature gas thermometer  D. Constant-pressure gas thermometer

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_____ is that property of a substance which remains constant if no heat enters or leaves the substance, while it does work or alters its volume, but which increases or diminishes should a small amount of heat enter or leave.  a. Entrophy  b. Enthalpy  c. Specific Heat  d. None of the above

Description : _____ is that property of a substance which remains constant if no heat enters or leaves the substance, while it does work or alters its volume, but which increases or diminishes should a small amount of heat enter or leave.  a. Entrophy  b. Enthalpy  c. Specific Heat  d. None of the above

Last Answer : Entrophy

Is the force of gravity on unit volume?  a. Specific Weight  b. Specific Heat  c. Specific Pressure  d. Specific Volume

Description : Is the force of gravity on unit volume?  a. Specific Weight  b. Specific Heat  c. Specific Pressure  d. Specific Volume

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Universal gas constant is defined as equal to product of the molecular weight of the gas and  (a) specific heat at constant pressure  (b) specific heat at constant volume  (c) ratio of two specific heats  (d) gas constant  (e) unity.

Description : Universal gas constant is defined as equal to product of the molecular weight of the gas and  (a) specific heat at constant pressure  (b) specific heat at constant volume  (c) ratio of two specific heats  (d) gas constant  (e) unity.

Last Answer : Answer : d

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

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If air is at pressure, p, of 3200 lbf/ft2 , and at a temperature, T, of 800 ˚R, what is the specific volume, v? (R=5303 ft-lbf/lbm-˚R, and air can be modeled as an ideal gas.)  A.9.8 ft^3/lbm  B.11.2 ft^3/lbm  C.13.33 ft^3/lbm  D.14.2 ft^3/lbm Formula: pv = RT v = RT / p

Description : If air is at pressure, p, of 3200 lbf/ft2 , and at a temperature, T, of 800 ˚R, what is the specific volume, v? (R=5303 ft-lbf/lbm-˚R, and air can be modeled as an ideal gas.)  A.9.8 ft^3/lbm  B.11.2 ft^3/lbm  C.13.33 ft^3/lbm  D.14.2 ft^3/lbm Formula: pv = RT v = RT / p

Last Answer : 13.33 ft^3/lbm

The heat supplied to the gaS at constant volume is (where m = Mass of gas, cv = Specific heat at constant volume, cp = Specific heat at constant pressure, T2 – T1 = Rise in temperature, and R = Gas constant)  A. mR(T2 – T1)  B. mcv(T2 – T1)  C. mcp(T2 – T1)  D. mcp(T2 + T1)

Description : The heat supplied to the gaS at constant volume is (where m = Mass of gas, cv = Specific heat at constant volume, cp = Specific heat at constant pressure, T2 – T1 = Rise in temperature, and R = Gas constant)  A. mR(T2 – T1)  B. mcv(T2 – T1)  C. mcp(T2 – T1)  D. mcp(T2 + T1)

Last Answer : Answer: B

The specific heat at constant volume is  A. the amount of heat required to raise the temperature of unit mass of gas through one degree, at constant pressure  B. the amount of heat required to raise the temperature of unit mass of gas through one degree, at constant volume  C. the amount of heat required to raise the temperature of 1 kg of water through one degree  D. any one of the above

Description : The specific heat at constant volume is  A. the amount of heat required to raise the temperature of unit mass of gas through one degree, at constant pressure  B. the amount of heat required to raise ... to raise the temperature of 1 kg of water through one degree  D. any one of the above

Last Answer : Answer: B

The amount of heat required to raise the temperature of the unit mass of gas through one degree at constant volume, is called  A.specific heat at constant volume  B.specific heat at constant pressure  C.kilo Joule  D.none of these

Description : The amount of heat required to raise the temperature of the unit mass of gas through one degree at constant volume, is called  A.specific heat at constant volume  B.specific heat at constant pressure  C.kilo Joule  D.none of these

Last Answer : Answer: A

Which of the following parameters is constant for a mole for most of the gases at a given temperature and pressure  (a) enthalpy  (b) volume  (c) mass  (d) entropy  (e) specific volume.

Description : Which of the following parameters is constant for a mole for most of the gases at a given temperature and pressure  (a) enthalpy  (b) volume  (c) mass  (d) entropy  (e) specific volume.

Last Answer : Answer : b

Which of the following is not the intensive property  (a) pressure  (b) temperature  (c) density  (d) heat  (e) specific volume.

Description : Which of the following is not the intensive property  (a) pressure  (b) temperature  (c) density  (d) heat  (e) specific volume.

Last Answer : Answer : d

Which of the following quantities is not the property of the system  (a) pressure  (b) temperature  (c) specific volume  (d) heat  (e) density.

Description : Which of the following quantities is not the property of the system  (a) pressure  (b) temperature  (c) specific volume  (d) heat  (e) density.

Last Answer : Answer : d

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

The ratio of the weight of a substance to the weight of some standard substance is called?  a. Specific Heat  b. Specific Gravity  c. Isothermal  d. Specific Weight

Description : The ratio of the weight of a substance to the weight of some standard substance is called?  a. Specific Heat  b. Specific Gravity  c. Isothermal  d. Specific Weight

Last Answer : Specific Gravity

What refers to the heat needed to change the temperature of the substances without changing its phases?  a. Latent heat  b. Sensible heat  c. Specific heat  d. entropy

Description : What refers to the heat needed to change the temperature of the substances without changing its phases?  a. Latent heat  b. Sensible heat  c. Specific heat  d. entropy

Last Answer : Sensible heat

What refers to the amount of heat needed to raise the temperature of an object by one degree Celsius or 1K?  A. Heat capacity  B. Specific heat  C. Latent heat  D. Molar heat

Description : What refers to the amount of heat needed to raise the temperature of an object by one degree Celsius or 1K?  A. Heat capacity  B. Specific heat  C. Latent heat  D. Molar heat

Last Answer : Heat capacity

______ of a Body is the absolute quantity of a matter in it.  a. Mass  b. Weight  c. Density  d. Volume

Description : ______ of a Body is the absolute quantity of a matter in it.  a. Mass  b. Weight  c. Density  d. Volume

Last Answer : Mass

The pressure of the vapor phase of a substance that is in equilibrium with the liquid or solid phase.  a. Phase Pressure  b. Equilibrium Vapor Pressure  c. Specific Pressure  d. Equilibrium Phase Pressure

Description : The pressure of the vapor phase of a substance that is in equilibrium with the liquid or solid phase.  a. Phase Pressure  b. Equilibrium Vapor Pressure  c. Specific Pressure  d. Equilibrium Phase Pressure

Last Answer : Equilibrium Vapor Pressure

The change in physical size of a substance when its temperature changes.  a. intensive property  b. extensive property  c. volume expansion  d. thermal expansion

Description : The change in physical size of a substance when its temperature changes.  a. intensive property  b. extensive property  c. volume expansion  d. thermal expansion

Last Answer : thermal expansion

Amount of heat needed to rate the temperature of a substance by 1°C  a. Heat Exchange  b. Heat Engine  c. Specific Heat  d. None of the above

Description : Amount of heat needed to rate the temperature of a substance by 1°C  a. Heat Exchange  b. Heat Engine  c. Specific Heat  d. None of the above

Last Answer : Specific Heat

Heat which causes a change in temperature of a substance.  a. Latent heat  b. Sensible heat  c. Specific heat  d. Heat of Fusion

Description : Heat which causes a change in temperature of a substance.  a. Latent heat  b. Sensible heat  c. Specific heat  d. Heat of Fusion

Last Answer : Sensible heat

The heat Q per unit mass per degree change in temperature that must be supplied or removed to change the temperature of a substance.  a. Specific Heat Capacity  b. Latent Heat  c. Heat of Transformation  d. Internal Heat

Description : The heat Q per unit mass per degree change in temperature that must be supplied or removed to change the temperature of a substance.  a. Specific Heat Capacity  b. Latent Heat  c. Heat of Transformation  d. Internal Heat

Last Answer : Specific Heat Capacity

What is defined as the energy required to raise the temperature of a unit mass of a substance by one degree?  A. Latent heat of fusion  B. Molar heat  C. Specific heat capacity  D. Specific heat

Description : What is defined as the energy required to raise the temperature of a unit mass of a substance by one degree?  A. Latent heat of fusion  B. Molar heat  C. Specific heat capacity  D. Specific heat

Last Answer : Specific heat

A cylinder contains oxygen at a pressure of 10 atm and a temperature of 300 K. The volume of the cylinder is 10 liters. What is the mass of the oxygen in grams? Molecular weight (MW) of oxygen is 32 g/mole?  a. 125.02  b. 130.08  c. 135.05  d. 120.04

Description : A cylinder contains oxygen at a pressure of 10 atm and a temperature of 300 K. The volume of the cylinder is 10 liters. What is the mass of the oxygen in grams? Molecular weight (MW) of oxygen is 32 g/mole?  a. 125.02  b. 130.08  c. 135.05  d. 120.04

Last Answer : 130.08 {(10atm)(10)(32)/(0.0821) (300K)}

“At constant pressure, the volume of a gas is inversely proportional to the pressure”. This is known as ______.  A. Boyle’s Law  B. Charles’s Law  C. Gay-Lussac Law  D. Ideal gas law

Description : “At constant pressure, the volume of a gas is inversely proportional to the pressure”. This is known as ______.  A. Boyle’s Law  B. Charles’s Law  C. Gay-Lussac Law  D. Ideal gas law

Last Answer : Boyle’s Law

An open system may refer to ______.  A. Control mass  B. Control volume  C. Control energy  D. Control temperature

Description : An open system may refer to ______.  A. Control mass  B. Control volume  C. Control energy  D. Control temperature

Last Answer : Control volume

A closed system may refer to ______.  A. Control mass  B. Control volume  C. Control energy  D. Control temperature

Description : A closed system may refer to ______.  A. Control mass  B. Control volume  C. Control energy  D. Control temperature

Last Answer : Control mass

If the value of n = 0 in the equation pvn = C, then the process is called  A. constant volume process  B. adiabatic process  C. constant pressure process  D. isothermal process

Description : If the value of n = 0 in the equation pvn = C, then the process is called  A. constant volume process  B. adiabatic process  C. constant pressure process  D. isothermal process

Last Answer : Answer: C

Mass (not weight) per unit volume  a. Specific Weight  b. Specific Volume  c. Density  d. None of the above

Description : Mass (not weight) per unit volume  a. Specific Weight  b. Specific Volume  c. Density  d. None of the above

Last Answer : Density

To convert volumetric analysis to gravimetric analysis, the relative volume of each constituent of the flue gases is  (a) divided by its molecular weight  (b) multiplied by its molecular weight  (c) multiplied by its density  (d) multiplied by its specific weight  (e) divided by its specific weight.

Description : To convert volumetric analysis to gravimetric analysis, the relative volume of each constituent of the flue gases is  (a) divided by its molecular weight  (b) multiplied by its molecular weight  (c) ... by its density  (d) multiplied by its specific weight  (e) divided by its specific weight.

Last Answer : Answer : b

What refers to the thermodynamic properties which are independent on the amount of the substance present?  a. Extensive property  b. Intensive properties  c. Reversible properties  d. Irreversible properties

Description : What refers to the thermodynamic properties which are independent on the amount of the substance present?  a. Extensive property  b. Intensive properties  c. Reversible properties  d. Irreversible properties

Last Answer : Intensive properties

What refers to the thermodynamic properties which are dependent on the amount of the substance present?  a. Extensive property  b. Intensive properties  c. Reversible properties  d. Irreversible properties

Description : What refers to the thermodynamic properties which are dependent on the amount of the substance present?  a. Extensive property  b. Intensive properties  c. Reversible properties  d. Irreversible properties

Last Answer : Extensive property

What refers to the measure of the disorder present in a given substance or system?  A. Enthalpy  B. Entropy  C. Heat capacity  D. Molar heat

Description : What refers to the measure of the disorder present in a given substance or system?  A. Enthalpy  B. Entropy  C. Heat capacity  D. Molar heat

Last Answer : Entropy

Steam at 1000 lbf/ft^2 pressure and 300˚R has specific volume of 6.5 ft^3/lbm and a specific enthalpy of 9800 lbf-ft/lbm. Find the internal energy per pound mass of steam.  A.2500 lbf-ft/lbm  B.3300 lbf-ft/lbm  C.5400 lbf-ft/lbm  D.6900 lbf-ft/lbm Formula: h= u+ pV u= h– pV

Description : Steam at 1000 lbf/ft^2 pressure and 300˚R has specific volume of 6.5 ft^3/lbm and a specific enthalpy of 9800 lbf-ft/lbm. Find the internal energy per pound mass of steam.  A.2500 lbf-ft/lbm  B.3300 lbf-ft/lbm  C.5400 lbf-ft/lbm  D.6900 lbf-ft/lbm Formula: h= u+ pV u= h– pV

Last Answer : 3300 lbf-ft/lbm

The value of specific heat at constant pressure (cp) is __________ that of at constant volume (cv).  A. less than  B. equal to  C. more than

Description : The value of specific heat at constant pressure (cp) is __________ that of at constant volume (cv).  A. less than  B. equal to  C. more than

Last Answer : Answer: C

The ratio of specific heat at constant pressure (Cp) and specific heat at constant volume (cv) is  A. equal to one  B. less than one  C. greater than one  D. none of these

Description : The ratio of specific heat at constant pressure (Cp) and specific heat at constant volume (cv) is  A. equal to one  B. less than one  C. greater than one  D. none of these

Last Answer : Answer: C

Considering one mole of any gas, the equation of state of ideal gases is simply the ______ law.  A. Gay-Lussac law  B. Dulong and Petit  C. Avogadro’s  D. Henry’s

Description : Considering one mole of any gas, the equation of state of ideal gases is simply the ______ law.  A. Gay-Lussac law  B. Dulong and Petit  C. Avogadro’s  D. Henry’s

Last Answer : Avogadro’s

A substance that has a fixed chemical composition is known as ______ substance.  A. Monoatomic  B. Heterogeneous  C. Homogeneous  D. Pure

Description : A substance that has a fixed chemical composition is known as ______ substance.  A. Monoatomic  B. Heterogeneous  C. Homogeneous  D. Pure

Last Answer : Pure

What refers to a liquid whose temperature is lower than saturation temperature corresponding to the existing pressure?  a. Subcooled liquid  b. Saturated liquid  c. Pure liquid  d. Compressed liquid

Description : What refers to a liquid whose temperature is lower than saturation temperature corresponding to the existing pressure?  a. Subcooled liquid  b. Saturated liquid  c. Pure liquid  d. Compressed liquid

Last Answer : Subcooled liquid

A plot of pressure vs. temperature for a given substance showing the various phases possible for that particular substance.  a. Phase diagram  b. P-T diagram  c. Wein Diagram  d. Histogram

Description : A plot of pressure vs. temperature for a given substance showing the various phases possible for that particular substance.  a. Phase diagram  b. P-T diagram  c. Wein Diagram  d. Histogram

Last Answer : Phase diagram

A control volume refers to what?  a. A fixed region in space  b. A reversible process  c. an isolated system  d. a specified mass

Description : A control volume refers to what?  a. A fixed region in space  b. A reversible process  c. an isolated system  d. a specified mass

Last Answer : A fixed region in space

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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