At 27^@Ctwo moles of an ideal monatomic gas occupies a volume V. The gas expands adiabatically to a volume 2V. Calculatechange in its internal energy

At 27^@Ctwo moles of an ideal monatomic gas occupies a volume V. The g

1.	At 27^@Ctwo moles of an ideal monatomic gas occupies a volume V. The gas expands adiabatically to a volume 2V. Calculatechange in its internal energy
Answer» Solution :As`Delta U = nC_VDelta T= ( nRTDelta T )/( gamma -1)[ asC_V=(R )/( ( gamma -1))]` So ` Delta U= 2 xx (3/2)xx 8.31 xx (189- 300 ) =- 2767 .23J` NEGATIVE sign means internal ENERGY will decrease.