Answer to Question #322700 in Molecular Physics | Thermodynamics for Tobias Felix

Question

A Carnot engine operating between 527C and 27 C produces 600KW of work. Determine,

(a) Qa, KW; (b) Qr, KW; (c) ΔS during heat rejection, KW/K and (d) thermal efficiency of the cycle.

Answer 1

Answer

a) relation between temperature and hear are given by

$\frac{Q_a}{Q_r}=\frac{T_a}{T_r}$

b) work done is given

$W=Q_a -Q_r$

c) entropy

$S=\frac{dQ}{T}$

d) efficiency

$\eta=1-\frac{Q_r}{Q_a}$