NEET UG PHYSICS MCQ: THERMODYNAMICS

1 Medium

1 of 1

Understanding +4 | -1

Choose the correct statement

View answer and explanation

Correct option: B

Heat is a path function, while internal energy is not

Option B (Heat is a path function, while internal energy is not) is correct because heat transfer depends on the process, while internal energy depends only on the state of the system.

More Questions from THERMODYNAMICS

Practice All Chapter MCQs →

The work done during expansion of a gas is independent of pressure if the expansion takes place When heat is added to a system, which of the following is not possible? The

p-T

relation for an adiabatic expansion is
A Carnot engine has efficiency

\frac{1}{4}

. Efficiency becomes

\frac{1}{3}

when temperature of sink is decreased by 50 K (keeping source fixed). What is the original temperature of the sink? If sink and source temperature of a refrigerator are

4^{\circ} \mathrm{C}

and

15^{\circ} \mathrm{C}

respectively. Then efficiency of refrigerator is The

SI

unit of mechanical equivalent of heat is