1. What quantity of energy, in joules, must be removed from a 134-g sample of C2H4(g) that is initially at 22.29°C to its condensation point (-103.77°C) and then change the gas to a liquid at that temperature?
_______________ J
Useful Information:
The molecular weight of C2H4 is 28.052 g/mol.
The boiling point of C2H4 is -103.77°C.
The heat capacity of C2H4(g) is 1.529 J/gK
The heat of vaporization of C2H4 is 13.53 kJ/mol.
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