Figure shows two processes a and b for a given sample of gas. If q1 and q2 are the amount of heat absorbed by the system in two cases and u1 and u2 are changes in internal energy respectively,then

Dear student the correct answer is d . We know that delta U for a gas depends on temperature and the change in temperature in both above the process is same ,so delta U is same for both. And we know that delta Q is equal to work done + delta U. And work done in process a is more than in process b as area under P/V curve for a is more .so delta Q for a is more. Thanks