1. 1.5 moles of a monatomic ideal gas is enclosed at 314K. THe initial volume of the gas is 3m^3. The gas is comperssed isothermally to a final volume of 1m^3. How much heat is removed from the gas. So deltaU=0, Q=-W, So we have to know the area under the P-V curve, but how can we get the solution without calculus?