AP EAMCET Engineering 22 Apr 2019 Shift 1 Paper

Three moles of an ideal monatomic gas performs a cycle ABCDA as shown in the figure. The temperatures of the gas at the states A. B. C and D are 400 K. 800 K. 2400 K and 1200 K respectively. The workdone by the gas during this cycle is
(R - universal gas constant)