Engineering Thermodynamics MCQ on Properties of Gases and Gas mixtures

This is an MCQ-based quiz on the topic of Properties of Gases and Gas mixtures

This includes the following:-

  1. Equations of State of a Gas

  2. Ideal Gas

  3. Gas Compression

  4. Equations of State

  5. Law of Corresponding States

  6. Dalton’s Law of Partial Pressures and Gibbs Function

Start Quiz

According to Avogadro’s law, volume of a g mol of all gases at the pressure of ____ and temperature of ____ is same.

760 mm Hg, 100 degree Celsius 760 mm Hg, 0 degree Celsius 750 mm Hg, 100 degree Celsius 750 mm Hg, 0 degree Celsius

At NTP, the volume of a g mol of all gases is(in litres)

22.1 22.2 22.3 22.4

The maximum and minimum values of ɣ is

1.33, 1 2.00, 1 1.67, 1 1.25, 1

In the equation p(v^n), n is calculated by

(logp1 + logp2) / (logv2 + logv1)

(logp1 – logp2) / (logv2 – logv1)

(logp1 – logp2) / (logv2 + logv1)

None of the mentioned

Which of the following is true for a polytropic process?

p(v^n) is used to describe the process

It is not adiabatic

It can be reversible

All of the mentioned

For a reversible adiabatic process,

p*(v^ɣ) = constant

T*(v^(ɣ-1)) = constant

T*(p^(1-ɣ)/ɣ) = constant

All of the mentioned

A mole of a substance has a mass equal to the molecular weight of the substance.

True

False

The equation of state is a functional relationship between

Pressure

Molar or specific volume

Temperature

All of the mentioned

Which of the following equation can be used to compute the entropy change between any two states of an ideal gas?

s2-s1 = cv*ln(T2/T1) + R*ln(v2/v1)

s2-s1 = cp*ln(T2/T1) – R*ln(p2/p1)

s2-s1 = cp*ln(v2/v1) + cv*ln(p2/p1)

All of the mentioned

The value of cp and cv depend on

Temperature of the gas

ɣ and R

Pressure of the gas

All of the mentioned

For which of the following gases, does the product (pv) when plotted against p gives depends only on temperature?

Nitrogen

Hydrogen

Air and oxygen

All of the mentioned

The equation of state of a gas is lim(pv)=RT .

True

False

Universal gas constant is given by

Lim(pv) / 273.16

R

0.083 litre-atm/gmol K

All of the mentioned

Which of the following statement is true about a gas?

lim(pv) with p tending to 0 is independent of the nature of gas

lim(pv) with p tending to 0 depends only on the temperature

This holds true for all the gases

All of the mentioned

If two properties (out of p,v,T) of a gas are known, the third can be evaluated.

True

False

Quiz/Test Summary
Title: Engineering Thermodynamics MCQ on Properties of Gases and Gas mixtures
Questions: 15
Contributed by:
NEO