Question: AT&T VPN 3:56 PM 78% An engine using 1 mol of an ideal gas ini- tially at 15.4 L and 314 K performs a cycle

AT&T VPN 3:56 PM 78% An engine using 1 mol of an ideal gas ini- tially at 15.4 L and 314 K performs a cycle consisting of four steps: 1) an isothermal expansion at 314 K from 15.4 L to 35 L ; 2) cooling at constant volume to 162 K; 3) an isothermal compression to its original volume of 15.4 L; and 4) heating at constant volume to its original temperature of 314 K. Find its efficiency. Assume that the heat capacity is 21 J/K and the univer- sal gas constant is 0.08206 L . atm/mol/K = 8.314 J/mol/K. Give your answer in the form of a percentage. 12 1 A quest.cns.utexas.edu

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