AP and TS EAMCET Engineering Model Paper 12

An air bubble contains 1 milli mole of air and is released from a depth of 10m in a lake and rises to the surface of water .The temperature of water is assumed to be constant at 300 K. Assume that the pressure due to 10 m column of water is equal to pressure of atmosphere. During this rise of bubble the work done by it on the surrounding water is nearly (take loge2=0.7,R=8.4J∕mol−k)