JEE Main 20202 Sep, Morning shiftPhysicsMediumThermodynamics163× since 2002
An engine takes in 5 moles of air at 20^oC and
1 atm, and compresses it adiabatically to
1/10^th of the original volume. Assuming air to
be a diatomic ideal gas made up of rigid
molecules, the change in its internal energy
during this process comes out to be X kJ. The
value of X to the nearest integer is________.