Heat & Thermodynamics MCQs with Answers

What is the degree of freedom in the case of a monoatomic gas?

• A.3
• B.5
• C.6
• D.7

The temperature at which the solid is in equilibrium with its liquid state is called ?

• A.Boiling point
• B.Melting point
• C.Freezing point
• D.Sublimation point

What is the SI unit of specific heat capacity?

• A.J/(kg·K)
• B.J/(kg·°C)
• C.cal/(g·°C)
• D.J/K

Heating a gas at constant volume will cause _?

• A.Increase in temperature and internal energy
• B.Increase in temperature only
• C.Increase in internal energy only
• D.Decrease in both temperature and internal energy

What is 98 degrees Fahrenheit in Celsius?

• A.38.33°C
• B.37.78°C
• C.35.56°C
• D.36.67°C

What is the specific heat ratio (γ = Cp/Cv) when the degrees of freedom are 3 and 5?

• A.3/5
• B.8/6
• C.7/5
• D.5/3

Past Paper MCQ

At what temperature are Celsius and Fahrenheit equal?

• A.-40 degrees
• B.0 degrees
• C.32 degrees
• D.-32 degrees

Evaporation causes ?

• A.Cooling
• B.Heating
• C.No temperature change
• D.Increase in pressure

An isothermal process for an ideal gas is represented on a P-V diagram by _?

• A.A portion of a hyperbola
• B.A straight line parallel to the volume axis
• C.A straight line parallel to the pressure axis
• D.A portion of a parabola

How many joules are there in one calorie?

• A.5.0
• B.2.4
• C.3.6
• D.4.2