a) Does the efficiency of the Carnot cycle depend upon whether a monoatomic or a diatomic ideal gas is used? Explain.
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- Calculate the efficiency of the reversible cycle in figure for an ideal monoatomic gas where the transformation from 1->2 is described by the equation P2 V = A= constant (Assume V2 = 4 V1). P 3 1 V1 2 V2 V Hint: You might need to use the following integral: = √ + GA little bit of a problem can be found for Q1-2 = AU + W where the integral above may result useful to know.Two moles of an ideal gas undergo an irreversible isothermal expansion fromVa=100 liters to Vb=300 liters at T=300K.(a) What is the entropy change for this process?(b) What is the Gibbs free energy change?(c) Is this process spontaneous or not? Explain your answer.9 PM Thu Apr 29 Problem 1 Unanswered Consider n moles of a monatomic ideal gas that goes through the reversible cycle abca shown in the pV diagram. What is the change in internal energy AUin going from c to a along the curved path? 9 -PoVo A 13 B - PoVo 21 - PoVo 24 -PoVo 2po Po as Vo 4Vo
- Shown below is the PV-diagram for a clockwise cycle. Determine the work done during the cycle, the heat flow during the cycle, & the change in internal energy during the cycle. P (N/m²) 10- 8 W = Q = AU = 4 2 V (m³) 2 4 6 8 109-59E An ideal dual cycle has a compression ratio of 15 and a cutoff ratio of 1.4. The pressure ratio during constant- volume heat addition process is 1.1. The state of the air at the beginning of the compression is P =14.2 psia and T, = 75°F. Calculate the cycle's net specific work, specific heat addition, and thermal efficiency. Use constant specific heats at room temperature. %3DFind the work for a system where temperature (T) is constant. (This is called an isothermal process) W = P(V₂ - Vf) W = 0 (V) W = P(V₁ - V₂) W = PV W = - PV) W = -nRT W = nRT W = nRT In W n(V) = nRT In