Physics Mock — Thermodynamics

By Shiv Shiv

QUIZ START

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#1. Boyle’s law is valid for

None

Real gas

Ideal gas

Both ideal and real gas

#2. Q3. Zeroth Law of Thermodynamics states that:

If two systems are separately in thermal equilibrium with a third system, they are in thermal equilibrium with each other

Entropy of the universe always increases

Energy can neither be created nor destroyed

Heat flows from hot body to cold body

#3. The work done in an isothermal expansion of an ideal gas depends upon:

Mass of the gas only

Initial and final pressures only

Change in temperature only

Initial and final volumes and temperature

#4. The Internal energy of an ideal gas is depends on

Temperature

Entropy

Pressure

Volume

#5. Which thermodynamic variable is a path function?

Work

entropy

Internal Energy

Enthalpy

#6. During free expansion of an ideal gas:

Internal energy changes

Temperature remains constant

Temperature decreases

Temperature increases

#7. In which process is molar specific heat infinite?

Isochoric process

Isobaric process

Isothermal process

Adiabatic process

#8. For an adiabatic process of an ideal gas, which quantity remains constant?

Heat exchanged

Pressure

Temperature

Internal energy

#9. The efficiency of a Carnot engine operating between temperatures T 1 and T 2 is:

T2/T1

T1/T2

1 + 𝑇2/ 𝑇1

1 − T1/T2

#10. The slope of an adiabatic curve is:

Equal to isothermal curve

Less than isothermal curve

Greater than isothermal curve

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