engineering recuitment BPSC AE Mock Test 2025 Thermodynamics Second Law of Thermodynamics and Entropy Temperature - Entropy Diagram
For an ideal gas, a constant pressure line and a constant volume line intersect at a point, in the Temperature (T) versus specific entropy (S) diagram. Cp is the specific heat at constant pressure and Cv is the specific heat at constant volume. The ratio of the slopes of the constant pressure and constant volume lines at the point of intersection is
1
\(\frac{{Cp - Cv}}{{Cp}}\)
2
\(\frac{{{C_p}}}{{{C_v}}}\)
3
\(\frac{{{C_p} - {C_v}}}{{{C_v}}}\)
4
\(\frac{{{C_v}}}{{{C_p}}}\)