The pressure of an ideal gas is Increased by keeping temperature constant . The kinetic energy of molecules

Options

A. decreases
B. increases
C. remains same
D. increases of decreases deoinding on the nature of gas

Answer

C

Explanation

The kinetic energy of molecules of an ideal gas is
`E=3/2Nk_BT`
where N is the number of molecules , `k_B` is the Boltzmann constant and T is temperature of the gas.
From the above expression it is clear that E depends on thte temperature but not on the pressure, volume and nature of the gas.
Thus, on increasing the pressure by keeping the temperature constant, the kinetic energy of molecules remains same.