Thermodynamics

When steam is converted into water, internal energy of the system.........

• Increases

• Decreases

• Remains constant

• Becomes zero

Which of the following phenomenon is reversible?

• Water fall

• Charging of a battery

• Rusting of iron by chemical change

• Production of heat by rubbing of hands

Which of the following is true about an isobaric process?

• Volume is constant

• Pressure is constant

• Temperature is constant

• No transfer of heat

By the Zeroth law of Thermodynamics, the thermodynamic variable whose value is equal for two systems in thermal equilibrium is

• Mass

• Pressure

• Volume

• Temperature

If a system goes from initial to final state without changing internal energy, then the heat supplied to system is

• Fully utilised for doing work

• Partially utilised for doing work by the system

• Partially utilised for doing work on the system

• Not used for doing work