Find the temperature increase in ∘C expected for 1.00 L of water when it absorbs all of the energy from the combustion of 1.00 g of acetylene, C2H2(g)? (Every mole of acetylene releases 1300 kJ of energy when combusted.)
a) 11.8∘C
b) 14.1∘C
c) 15.5∘C
d) 13.4∘C
e) 13.6∘C
1 Answer
Jan 25, 2018
- 11.8
Explanation:
Molecular weight of acetylene is
So,
Now, if per mole acetylene releases
Now,this amount of heat(
So,mass of
So, we can apply
Putting the values we get,