Calculate the heat necessary to convert 10.0 g of solid benzene at its melting point to vapor at its boiling point.The specific heat of liquid benzene is 0.580 cal/(g x °C),the heat of fusion for benzene is 31.0 cal/g,and the heat of vaporization is 94.0 cal/g.The melting point of benzene is 5.5 °C and the boiling point is 80.1 °C.

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To calculate the total heat required, we need to consider the heat for melting the solid benzene, heating the liquid benzene from its melting point to its boiling point, and then vaporizing it. 1. Heat required to melt solid benzene = mass × heat of fusion = 10.0 g × 31.0 cal/g = 310 cal2. Heat required to heat the liquid from melting point to boiling point = mass × specific heat × temperature change = 10.0 g × 0.580 cal/(g°C) × (80.1°C - 5.5°C) = 10.0 × 0.580 × 74.6 = 432.68 cal3. Heat required to vaporize the liquid benzene = mass × heat of vaporization = 10.0 g × 94.0 cal/g = 940 calTotal heat required = 310 cal + 432.68 cal + 940 cal = 1682.68 cal, which rounds to 1683 cal.

Calculate the Heat Necessary to Convert 10