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heat is transferred at a rate of 2 kw from a hot reservoir at 775 k to a cold reservoir at 300 k. calculate the rate at which the entropy of the two reservoirs changes. (round the final answer to six decimal places.) the rate at which the entropy of the two reservoirs changes is kw/k. is the second law satisfied? (click to select)

Answer :

the rate at which the entropy of the two reservoirs changes is 0.004081 KW/K

Yes, the second law is satisfied.

claculation :

ΔS = Q/T (entropy formula)

ΔS1 = 2/300 = 0.006667 KW/K

ΔS2 = 2/715 = 0.002580

Δs = 0.006667 - 0.002580

Δs = 0.004081 KW/K

Yes, the second law is satisfied.

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