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question A gallon of hot water is mixed with a gallon of cold water in a perfect

ID: 1813230 • Letter: Q

Question

question

A gallon of hot water is mixed with a gallon of cold water in a perfectly insulated container. When the waters are mixed, the entropy increases decreases remains the same You raise the pressure of a gas at constant temperature in a closed system. The entropy of the gas does not change as temperature is constant does not change as there is no heat transfer increases decreases Which system has the greatest entropy change if 10 mol N2 are in each piston-cylinder, which are initially at 100 degree C? Both processes are reversible. A B Same for both Which of the following systems will have the largest entropy change when the blue partition is removed? The ideal gases are initially at 1 bar. A gas goes from state 1 to state 2 in a reversible adiabatic process. It then goes from 2 back to 1 by a different pathway that is irreversible and not adiabatic. The entropy change for the gas for the irreversible pathway is zero. greater than less than equal to For a Carnot heat engine, which statement must be incorrect? W = work QH = heat added at high temperature QC= heat removed at low temperature |Qc| > |W| |QH||QC| Which diagram corresponds to a Carnot heat engine in which both adiabatic steps in the cycle are irreversible? Which cannot be done continuously? Convert 100 kJ work to 100 kJ heat Convert 100 kJ electricity to 200 kJ heat Convert 100 kJ heat to 100 kJ work Both A and B Suppose both adiabatic steps in a Carnot cycle are irreversible. Which is correct about the entropy change of the Carnot engine? DeltaSengine > 0 DeltaSengine = 0 DeltaSengine

Explanation / Answer

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