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For an ideal gas, a constant pressure line and a constant volume line intersect at a point, in the Temperature $(T)$ versus specific entropy $\text{(s)}$ diagram. $C_{P}$ is the specific heat at constant pressure and $C_{V}$ 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

- $\dfrac{C_{P}-C_{V}}{C_{P}} \\$
- $\dfrac{C_{P}}{C_{V}} \\$
- $\dfrac{C_{P}-C_{V}}{C_{V}} \\$
- $\dfrac{C_{V}}{C_{P}}$