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A liquid at 30 degree C is poured very slowly into a calorimeter that is at a temperature of 110 degrees C. The boiling temperature of the liquid is 80 degrees C. It is found that the first 5gm of the liquid completely evaporates. After pouring another 80gm of the liquid the equilibrium temperature is found to be 50 degrees C. The ratio of the latent heat (of vaporization) to its specific heat is _____ degrees C?.

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