4. The true molar heat capacity of water vapor can be expressed by the equation: Ср=28.83 13.74*10-3Т-1.435*10-6Т2 J/(mol*K). What amount of heat will be released when 90 g of steam is cooled from 307 C to 100 C at a constant pressure of 1.013 * 105 N/m2?
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