Question
What will be the amount of heat evolved when 39 gm of C6H6(l) are burnt? Given that:
Solution
The given thermochemical equation is

Gram molecular mass of

Heat evolved by burning 78g of
= 3264.6 k J
Heat evolved by burning 39 g
would be =


Gram molecular mass of


Heat evolved by burning 78g of

= 3264.6 k J
Heat evolved by burning 39 g

