Two copper blocks, each of mass 1.98 kg, initially have different temperatures,t1 = 17° C and t2 = 27° 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.
ΔS1=
J/K ΔS2=
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 ΔS.
ΔS1=
J/K ΔS2=
J/K