When heat energy of 1500 J is suppliedto a gas the external work done on the gas is 525 J what is the increase in its internal energy

When heat energy of 1500 J is suppliedto a gas the external work done

1.	When heat energy of 1500 J is suppliedto a gas the external work done on the gas is 525 J what is the increase in its internal energy
Answer» Solution :Heat energy SUPPLIED `DELTAQ= +1500J` EXTERNAL work done `Deltaw=-525J` By `1^(st)` law of THERMODYNAMICS `DeltaQ = DeltaU +Deltaw` `:. DeltaU =DeltaQ-Deltaw=1500+525=1025J`