(19-38) When a gas is taken from a to c along the curved path in Fig. 19-32, the work done by the ga

(19-38) When a gas is taken from a to c along the curved path in Fig. 19-32, the work done by the gas is W=−35J and the heat added to the gas is Q=−63J . Along path abc, the work done is W=−54J. (a) What is Q for path abc? (b) If P_c=1/2P_b, what is W for path cda? (c) What is Q for path cda? (d) What is E_int,a−E_int,c? (e) If E_int,d−E_int,c=12J, what is Q for path da?