Physics Mock — Thermodynamics - sonepublication.in

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#1. The slope of an adiabatic curve is:

Equal to isothermal curve

Greater than isothermal curve

Less than isothermal curve

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

Temperature

Entropy

Pressure

Volume

#3. Which thermodynamic variable is a path function?

entropy

Enthalpy

Work

Internal Energy

#4. During free expansion of an ideal gas:

Temperature increases

Temperature decreases

Temperature remains constant

Internal energy changes

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

Isobaric process

Isothermal process

Adiabatic process

Isochoric process

#6. Boyle’s law is valid for

Real gas

None

Ideal gas

Both ideal and real gas

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

Temperature

Internal energy

Pressure

Heat exchanged

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

Initial and final pressures only

Initial and final volumes and temperature

Mass of the gas only

Change in temperature only

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

Energy can neither be created nor destroyed

Heat flows from hot body to cold body

Entropy of the universe always increases

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

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

1 − T1/T2

1 + 𝑇2/ 𝑇1

T2/T1

T1/T2

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