A heat engine using 1.0 mol of a monatomic gas follows the cycle shown in the fi

Question

A heat engine using 1.0 mol of a monatomic gas follows the cycle shown in the figure. 3750 J of heat energy is transferred to the gas during process 1right arrow 2. Determine W_s for process 1right arrow 2 in this cycle. Express your answer as an integer and include the appropriate units. Determine Q for process 1 right arrow 2 in this cycle. Express your answer to three significant figures and include the appropriate units. Determine delta E for process 1 right arrow 2 in this cycle. Express your answer to three significant figures and include the appropriate units.

Explanation / Answer

A) work dW = PdV, where P= pressure and dV= change in volume. Since, for process 1->2, volume is constant so dV=0.

Hence,Ws (1->2) = 0 J

B)Heat transferred to the system from 1->2 = 3750 J. So, Q (1->2) = 3750 J

C) As per the first law of thermodynamics,dQ = dE + dW.

dW = 0, dQ = 3750 J. So, dE (1->2) = 3750 J

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