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Chemistry, 17.10.2021 01:50 Wildstyle3000

Calculate the energy change for a pure substance over a temperature range. The following information is given for mercury at 1 atm:

boiling point = 356.6 °C

(Triangle)H vap(356.6 °C) = 295.6 J/g

melting point = -38.90 °C

(Triangle)H fus(-38.90 °C) = 11.60 J/g

specific heat gas = 0.1040 J/g °C

specific heat liquid = 0.1390 J/g °C

A 42.80 g sample of liquid mercury is initially at 48.00 °C. If the sample is heated at constant pressure (P = 1 atm), calculate the amount of
energy in LJ needed to raise the temperature of the sample to 367.50 °C.

kJ

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