NEET Physics - MCQ Practice Questions

A system absorbs 500 J of heat and does 200 J of work on surroundings. What is the change in internal energy?

The entropy of an isolated system can never:

In an isothermal process for an ideal gas, which quantity remains constant?

For an ideal gas undergoing isobaric process, the relation between volume and temperature is:

In an isochoric process, the work done by the gas is:

A gas expands from volume V to 2V at constant pressure P. The work done by the gas is:

A gas undergoes an adiabatic compression. Which statement is correct?

For a cyclic process, which of the following is always true?

A Carnot engine operates between 300 K and 600 K. Its efficiency is:

Which process has the property that pressure remains constant?

For an isothermal process of an ideal gas, the relationship between pressure and volume is:

A heat engine absorbs 500 J of heat and does 200 J of work. The heat rejected is:

The maximum possible efficiency of a heat engine operating between 400 K and 500 K is:

A thermodynamic system undergoes a process where ΔU = -50 J and W = 30 J (work done by the system). Calculate the heat absorbed by the system.

Which of the following is a path function?

An ideal gas undergoes an isothermal expansion from volume V₁ to V₂. If the process is reversible, what is the work done by the gas?

A gas is compressed adiabatically. Which statement is true?

A heat engine absorbs 500 J of heat from a hot reservoir and rejects 300 J to a cold reservoir in one cycle. What is the efficiency of the engine?

A system absorbs 500 J of heat and does 200 J of work on the surroundings. What is the change in internal energy of the system?

Which of the following is a state function?