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CS₂ of ten milligrams mixes with excess of Cl₂ gas the heat evolved is transferred without loss to 6.450 grams of H₂O at the temperature of 22.0 degree Celsius determine the final temperature of the water ?

Heat of vaporization of Benzene =30.72kJ/mol , normal boiling point = 80.1 degrees Celsius. Determine At what temperature does C₆H₆ boil when the external pressure = 470 torr?

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