The enthalpy of a vaporisation of C$C{{l}_{4}}$ is 30.5 kJ /mol

CBSE Class 11 CBSE Class 11 Chemistry
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1

The enthalpy of a vaporisation of C$C{{l}{4}}$ is 30.5 kJ /mol. Calculate the heat required for the vaporisation of 284 g of
C$C{{l}{4}}$ at constant pressure
(molar mass of C$C{{l}_{4}}$ -154 g/ mol)

2

1 mole of $CC{{l}{4}}$ =154g
Heat requiredcfor vapourising 284 g $CC{{l}{4}}$ = 30.5kJ
Heat required for vapourising
284 g $CC{{l}_{4}}$ = 30.5 x 284 / 154 kJ = 56.25 kJ