$\Delta H = {(\Delta H_{f}^ \circ )_{CO}} + {(\Delta H_{f}^ \circ )_{{H_2}O}} - {(\Delta H_{f}^ \circ )_{C{O_2}}}$
$\Delta H = - 110.5 + ( - 241.8) - ( - 393.5) = + 41.2\,kJ\,mo{l^{ - 1}}$
પદાર્થ | $H _{2}$ | $C$(ગ્રેફાઈટ) | $C _{2} H _{6}( g )$ |
$\frac{\Delta_{ C } H ^{\Theta}}{ kJmol ^{-1}}$ | $-286.0$ | $-394.0$ | $-1560.0$ |
તો,ઈથેનની સર્જન એન્થાલ્પી ........