1. The problem statement, all variables and given/known data Two moles of an ideal monoatomic gas trebles its initial volume is an isobraic expansion from state A to state B. The gas is then cooled ischorically to state C and finally compressed isothermally until it returns to state A. The molar gas constat is: R = 8.314 J mol^-1 K^-1. Boltzmann's constant: 1.38*10^-23JK^-1 state B temperature = 803K state A temperature = 268K What is the work done on the surroundings in each of the following processes: (i) A > B (ii) B > C (iii) C > A 2. Relevant equations (i)W= (intergration)n.R.T/V.dv = n.R.T(B).(intergration) 1/V. dv = n.R.T(A).ln(V(B)/V(A)) (ii) W = 0 (iii) W=n.R.(T(B)-T(A)) 3. The attempt at a solution (i) W = n.R.T(A).ln(V(B)/V(A)) =2*8.341*268*ln(2) = 3099J (which was wrong..... correct answer should be 8900) (ii) W= 0 as there is no work needed for cooling of the system (iii) W=n.R.(T(A)-T(B)) 2*8.341*(268-803) = -8924 (which was wrong.... correct answer should be -4890) can anyone tell me where did i do wrong??? thanks!