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10)When a metal bar is temporarily connected between a hot reservoir at Th and a cold...

10)When a metal bar is temporarily connected between a hot reservoir at Th and a cold reservoir at Tc, the energy transferred by heat from the hot reservoir to the cold reservoir is Qh. In this irreversible process, find expressions for the change in entropy of the following. (Use any variable or symbol stated above as necessary.)

(a) the hot reservoir
ΔSh =  

  

(b) the cold reservoir
ΔSc =  

  

(c) the Universe
ΔSU =  

12)A Carnot engine operates between 105°C and 18°C. How much ice can the engine melt from its exhaust after it has done 4.0 ✕ 104 Jof work? (The latent heat of fusion for water is 3.33 ✕ 105 J/kg.)
kg

  

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