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cse • paper_1 • thermal_physicscse-2015-subject-04-002

Vapour pressure — UPSC CSE 2015 Physics PYQ

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The vapour pressure of an organic substance is 50\times10^3\ \mathrm{Pa} at 40^{\circ}\mathrm{C}. Its normal boiling point is 80^{\circ}\mathrm{C}. If the substance in vapour phase can be treated like an ideal gas, find the latent heat of vaporization of the substance.

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