52) The door of a running refrigerator inside a room was left open. Which of the following statements is correct?

The room will be cooled to the temperature inside the refrigerator

The room will be cooled very slightly

The room will be gradually warmed up

The temperature of the air in room will remain unaffected

Answer is:

The room will be gradually warmed up

Increase

Decrease

remains same

May increase/decrease depending on initial temperature of hot water and cold water

Answer is:

Radiation of heat from the surroundings

Increasing of temperature

Performing of shaft work on the system

Performing of shaft work by the system.

Answer is: