Question

Heat of combustion of C2H2 is -337 K.Cal. If
5.6 lit O2, is used at STP in the combustion,
heat liberated is... K.Cal

Answer 1

Answer:

Solution:- (B) 10Kcal

Explanation:

Mol. wt. of methane =16gm

Heat liberated during the combustion of 4gm methane =2.5kcal

Heat liberated during the combustion of 16gm methane =

4

2.5

×16=10kcal

Hence the heat of combustion of methane is 10Kcal.