In an isothermal expansion at 27 oC, an ideal gas does 60 J of work. What is the change in entropy of the gas?
Answer to relevant QuestionsOne mole of an ideal gas undergoes an isothermal compression at 0 oC, and 7.5 x 103 J of work is done in compressing the gas. (a) Will the entropy of the gas (1) increase, (2) remain the same, or (3) decrease? Why? (b) ...A system goes from state 1 to state 3 as shown on the T–S diagram in Fig. 12.25. (a) The heat transfer for the process going from state 2 to state 3 is (1) positive, (2) zero, (3) negative. Explain. (b) Calculate the ...An internal combustion engine with a thermal efficiency of 15.0% absorbs 1.75 * 105 J absorbs of heat from the hot reservoir. How much heat is lost by the engine in each cycle? An air conditioner has a COP of 2.75. What is the power rating of the unit if it is to remove 1.00 x 107 J of heat from a house interior in 20 min? It has been proposed that temperature differences in the ocean could be used to run a heat engine to generate electricity. In tropical regions, the water temperature is about 25oC at the surface and about 5 oC at very deep ...
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