_________ is the average distance a molecule moves before colliding with another molecule.  a. mean free path  b. path allowance  c. compacting factor  d. molecular space

_________ is the average distance a molecule moves before colliding with another molecule.  a. mean free path  b. path allowance  c. compacting factor  d. molecular space
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mean free path
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Last Answer : temperature

The process of one substance mixing with another because of molecular motion is called _________.  a. diffusion  b. viscosity  c. streamline flow  d. solution

Description : The process of one substance mixing with another because of molecular motion is called _________.  a. diffusion  b. viscosity  c. streamline flow  d. solution

Last Answer : diffusion

What refers to the series of states through which a system passes during the process?  a. path  b. quasi- static steps  c. reversibility moves  d. irreversibility moves

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Last Answer : path

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

A _________ is a quantity whose value depends on the path followed during a particular change in state.  a. path function  b. point function  c. process  d. cycle

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Last Answer : path function

A _________ is a quantity whose value at any state is independent of the path or process used to reach that state.  a. cycle  b. path function  c. point function  d. process

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Last Answer : point function

According to Dalton’s law, the total pres sure of the mixture of gases is equal to  (a) greater of the partial pressures of all  (b) average of the partial pressures of all  (c) sum of the partial pressures of all  (d) sum of the partial pressures of all divided by average molecular weight  (e) atmospheric pressure.

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Last Answer : Answer : c

What refers to any change that a system undergoes from one equilibrium state to another equilibrium state?  A. Process  B. Path  C. Phase  D. Cycle

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_________ is a thermodynamic potential that measures the “useful” or process-initiating work obtainable from an isothermal, isobaric thermodynamic system.  a. Du-Pont Potential  b. Gibbs free energy  c. Rabz-Eccles Energy  d. Claussius Energy

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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

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

A temperature scale whose zero point is absolute zero, the temperature of “0” entropy at which all molecular motion stops.  a. Celsius  b. Fahrenheit  c. Kelvin  d. Rankine

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Last Answer : Kelvin

The molecular number density of an ideal gas at standard temperature and pressure in cm3  a. Froude number  b. Loschmidt number  c. Mach number  d. Reynold number

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Last Answer : Loschmidt number

When an object undergoes thermal expansion,  a. any holes in the object expand as well  b. any holes in the object remain the same  c. mass increases  d. molecular activities would cease

Description : When an object undergoes thermal expansion,  a. any holes in the object expand as well  b. any holes in the object remain the same  c. mass increases  d. molecular activities would cease

Last Answer : any holes in the object expand as well

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

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What is the heat capacity of one gram of a substance?  A. Molecular heat  B. Specific heat  C. Latent heat  D. Molar heat

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Last Answer : Specific heat

What is the heat capacity of one mole of substance?  A. Molecular heat  B. Specific heat  C. Latent heat  D. Molar heat

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Last Answer : Molar heat

What type of system energy is related to the molecular structure of a system?  A. Macroscopic form of energy  B. Microscopic form of energy  C. Internal energy  D. External energy

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Last Answer : Microscopic form of energy

Which of the following gas has a minimum molecular mass?  A. Oxygen  B. Nitrogen  C. Hydrogen  D. Methane

Description : Which of the following gas has a minimum molecular mass?  A. Oxygen  B. Nitrogen  C. Hydrogen  D. Methane

Last Answer : Answer: C

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

The universal gas constant of a gas is the product of molecular mass of the gas and the gas constant.  A. Correct  B. Incorrect

Description : The universal gas constant of a gas is the product of molecular mass of the gas and the gas constant.  A. Correct  B. Incorrect

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According to Avogadro’s law, the density of any two gases is __________ their molecular masses, if the gases are at the same temperature and pressure.  A. equal to  B. directly proportional to  C. inversely proportional to

Description : According to Avogadro’s law, the density of any two gases is __________ their molecular masses, if the gases are at the same temperature and pressure.  A. equal to  B. directly proportional to  C. inversely proportional to

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The energy of molecular motion appears as  (a) heat  (b) potential energy  (c) surface tension  (d) friction  (e) increase in pressure.

Description : The energy of molecular motion appears as  (a) heat  (b) potential energy  (c) surface tension  (d) friction  (e) increase in pressure.

Last Answer : Answer : a

Molecular volume of any perfect gas at 600 x 103 N/m2 and 27°C will be  (a) 4.17m3/kgmol  (b) 400 m3/kg mol  (c) 0.15 m3/kg mol  (d) 41.7 m3/kg mol  (e) 417m3/kgmol.

Description : Molecular volume of any perfect gas at 600 x 103 N/m2 and 27°C will be  (a) 4.17m3/kgmol  (b) 400 m3/kg mol  (c) 0.15 m3/kg mol  (d) 41.7 m3/kg mol  (e) 417m3/kgmol.

Last Answer : Answer : a

The value of the product of molecular weight and the gas characteristic constant for all the gases in S.I. units is  (a) 29.27 J/kmol°K  (b) 83.14J/kmol°K  (c) 848J/kmol°K  (d) All J/kmol °K  (e) 735 J/kmol °K.

Description : The value of the product of molecular weight and the gas characteristic constant for all the gases in S.I. units is  (a) 29.27 J/kmol°K  (b) 83.14J/kmol°K  (c) 848J/kmol°K  (d) All J/kmol °K  (e) 735 J/kmol °K.

Last Answer : Answer : b

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 value of the product of molecular weight and the gas characteristic constant for all the gases in M.K.S. unit is  (a) 29.27 kgfm/mol°K  (b) 8314kgfm/mol°K  (c) 848kgfm/mol°K  (d) 427kgfm/mol°K  (e) 735 kgfm/mol°K.

Description : The value of the product of molecular weight and the gas characteristic constant for all the gases in M.K.S. unit is  (a) 29.27 kgfm/mol°K  (b) 8314kgfm/mol°K  (c) 848kgfm/mol°K  (d) 427kgfm/mol°K  (e) 735 kgfm/mol°K.

Last Answer : Answer : c

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

The statement that molecular weights of all gases occupy the same volume is known as  (a) Avogadro’s hypothesis  (b) Dalton’s law  (c) Gas law  (d) Law of thermodynamics  (e) Joule’s law.

Description : The statement that molecular weights of all gases occupy the same volume is known as  (a) Avogadro’s hypothesis  (b) Dalton’s law  (c) Gas law  (d) Law of thermodynamics  (e) Joule’s law.

Last Answer : Answer : a

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

The same volume of all gases would represent their  (a) densities  (b) specific weights  (c) molecular weights  (d) gas characteristic constants  (e) specific gravities.

Description : The same volume of all gases would represent their  (a) densities  (b) specific weights  (c) molecular weights  (d) gas characteristic constants  (e) specific gravities.

Last Answer : Answer : c

Absolute zero pressure will occur  (a) at sea level  (b) at the center of the earth  (c) when molecular momentum of the system becomes zero  (d) under vacuum conditions  (e) at a temperature of – 273 °K

Description : Absolute zero pressure will occur  (a) at sea level  (b) at the center of the earth  (c) when molecular momentum of the system becomes zero  (d) under vacuum conditions  (e) at a temperature of – 273 °K

Last Answer : Answer : c

What is a process with identical end states called?  A. Cycle  B. Path  C. Phase  D. Either path or phase

Description : What is a process with identical end states called?  A. Cycle  B. Path  C. Phase  D. Either path or phase

Last Answer : Cycle

What is a process in which the system remains infinitesimally closed to an equilibrium state at all times?  A. Path equilibrium process  B. Cycle equilibrium process  C. Phase equilibrium process  D. Quasi-state or quasiequilibrium process

Description : What is a process in which the system remains infinitesimally closed to an equilibrium state at all times?  A. Path equilibrium process  B. Cycle equilibrium process  C. Phase equilibrium process  D. Quasi-state or quasiequilibrium process

Last Answer : Quasi-state or quasi- equilibrium process

What refers to the series of state through which a system passes during a process?  A. Path  B. Phase  C. Cycle  D. Direction

Description : What refers to the series of state through which a system passes during a process?  A. Path  B. Phase  C. Cycle  D. Direction

Last Answer : Path

Heat and work are  (a) point functions  (b) system properties  (c) path functions  (d) intensive properties  (e) extensive properties.

Description : Heat and work are  (a) point functions  (b) system properties  (c) path functions  (d) intensive properties  (e) extensive properties.

Last Answer : Answer : c

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

Properties of substances like pressure, temperature and density, in thermodynamic coordinates are  (a) path functions  (b) point functions  (c) cyclic functions  (d) real functions (e) thermodynamic functions.

Description : Properties of substances like pressure, temperature and density, in thermodynamic coordinates are  (a) path functions  (b) point functions  (c) cyclic functions  (d) real functions (e) thermodynamic functions.

Last Answer : Answer : b

Extensive property of a system is one whose value  (a) depends on the mass of the system like volume  (b) does not depend on the mass of the system, like temperature, pressure, etc.  (c) is not dependent on the path followed but on the state  (d) is dependent on the path followed and not on the state  (e) is always constant.

Description : Extensive property of a system is one whose value  (a) depends on the mass of the system like volume  (b) does not depend on the mass of the system, like temperature, pressure, etc.  (c) is not ... the state  (d) is dependent on the path followed and not on the state  (e) is always constant.

Last Answer : Answer : a

Intensive property of a system is one whose value  (a) depends on the mass of the system, like volume  (b) does not depend on the mass of the system, like temperature, pressure, etc.  (c) is not dependent on the path followed but on the state  (d) is dependent on the path followed and not on the state  (e) remains constant.

Description : Intensive property of a system is one whose value  (a) depends on the mass of the system, like volume  (b) does not depend on the mass of the system, like temperature, pressure, etc.  (c) is not ... on the state  (d) is dependent on the path followed and not on the state  (e) remains constant.

Last Answer : Answer : b

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

What is the internal energy associated with the atomic bonds in a molecule called?  A. Chemical energy  B. Latent energy  C. Phase energy  D. State energy

Description : What is the internal energy associated with the atomic bonds in a molecule called?  A. Chemical energy  B. Latent energy  C. Phase energy  D. State energy

Last Answer : Chemical energy

The total energy of a molecule is shared equally by the various degrees of freedom possessed by it. This law is known as  A. law of equipartition of energy  B. law of conservation of energy  C. law of degradation of energy  D. none of these

Description : The total energy of a molecule is shared equally by the various degrees of freedom possessed by it. This law is known as  A. law of equipartition of energy  B. law of conservation of energy  C. law of degradation of energy  D. none of these

Last Answer : Answer: A

_________ is the unit of pressure and stress.  a) Newton  b) Pascal  c) Hertz  d) Joule

Description : _________ is the unit of pressure and stress.  a) Newton  b) Pascal  c) Hertz  d) Joule

Last Answer : Pascal

_________ 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 most efficient cycle that can operate between two constant temperature reservoir is the _________.  a. Otto Cycle  b. Lazare Cycle  c. Isothermal Cycle  d. Carnot Cycle

Description : The most efficient cycle that can operate between two constant temperature reservoir is the _________.  a. Otto Cycle  b. Lazare Cycle  c. Isothermal Cycle  d. Carnot Cycle

Last Answer : Carnot Cycle

The flow through an open system is _________ if all properties at each point within the system remain constant with respect to time.  a. streamline flow  b. steady flow  c. constant flow  d. algebraic flow

Description : The flow through an open system is _________ if all properties at each point within the system remain constant with respect to time.  a. streamline flow  b. steady flow  c. constant flow  d. algebraic flow

Last Answer : steady flow

One calorie is equal to _________.  a. 1/180 W.h  b. 1/860 W.h  c. 1/360 W.h  d. 1/250 W.h

Description : One calorie is equal to _________.  a. 1/180 W.h  b. 1/860 W.h  c. 1/360 W.h  d. 1/250 W.h

Last Answer : 1/860 W.h

Gasoline and Diesel Engines are best described by the _________.  a. Otto Cycle  b. Burnign Cycle  c. Shikki Cycle  d. Shapa R’ Elli Cycle

Description : Gasoline and Diesel Engines are best described by the _________.  a. Otto Cycle  b. Burnign Cycle  c. Shikki Cycle  d. Shapa R’ Elli Cycle

Last Answer : Otto Cycle

In thermodynamics, a throttling process, also called a _________, is a type of isenthalpic process where a liquid or gas is cooled as it passes from a higher pressure state to a lower pressure state.  a. Rankine Process  b. Carnot Cycle  c. Joule-Thomson process  d. Refrigeration process

Description : In thermodynamics, a throttling process, also called a _________, is a type of isenthalpic process where a liquid or gas is cooled as it passes from a higher pressure state to a lower pressure state.  a. Rankine Process  b. Carnot Cycle  c. Joule-Thomson process  d. Refrigeration process

Last Answer : Joule-Thomson process

Intensive properties of a system are called _________.  a. Bulk Properties  b. Innate Properties  c. Natural Properties  d. Inside Properties

Description : Intensive properties of a system are called _________.  a. Bulk Properties  b. Innate Properties  c. Natural Properties  d. Inside Properties

Last Answer : Bulk Properties