Two copper blocks, each of mass 1.74 kg, initially have
different temperatures,t1 = 18° C and
t2 = 30° C. The blocks are placed in contact
with each other and come to thermal equilibrium. No heat is lost to
the surroundings.
(a) Find the final temperature of the blocks.
°C
Find the heat transferred between them.
J
(b) Find the entropy change of each block during the time interval
in which the first joule of heat flows.
?S1 | = J/K |
?S2 | = J/K |
(c) Estimate the entropy change of each block after it has reached
thermal equilibrium. Use each block's average temperature during
the process in calculating the estimated values of ?S.
?S1 | = J/K |
?S2 | = J/K |
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