Mechanical Engineering:: Thermodynamics

The absolute pressure of a given mass of a perfect gas varies inversely as its volume, when the temperature remains constant. This statement is known as Charles' law.

A. Yes B. No

Which of the following gas has a minimum molecular mass?

A. Oxygen B. Nitrogen
C. Hydrogen D. Methane

A process, in which the temperature of the working substance remains constant during its expansion or compression, is called

A. isothermal process B. hyperbolic process
C. adiabatic process D. polytropic process

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

According to Gay-Lussac law, the absolute pressure of a given mass of a perfect gas varies __________ as its absolute temperature, when the volume remains constant.

A. directly B. indirectly

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