The possibility of increase in the temperature of gas without adding heat to it happens in

Options

A. Adiabatic exapansion
B. isothermal expansion
C. adiabatic compression
D. isothermal compression

Answer

C

Explanation

In adiabatic process
`dQ=0 rarrdU +dW=0
or dU=-dW`
In the process of compression work is done on the gas therefore dW is negative .Hence dU is positive i.e internal energy of gas increases and threefore temperature of the gas also increses.