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4. How much energy is needed to convert 74.0 grams of ice at -25.0°C to liquid at 75.0°C? specific heat (ice) = 2.10 J/(g°C)5. Shown below is a phase diagram for compound X. a) At 25°C and 1 atm X will exist as b) At 50°C and 0.5 atm X will exist as

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