How much heat in kJ is released when nitrogen and hydrogen react as below to form 100.g ammonia heat equals-92.2kj

Question

asked Apr 6, 2021 174k views

1 Answer

Alpesh Trivedi · Answer 1 · 2021-04-10T10:58:26+0000

100g of ammonia releases 271.18 kJ of heat.

Step-by-step explanation:

Given:

N₂ reacts with H₂

The reaction is:

2N₂ + 3H₂ → 2NH₃ + 92.2 kJ

According to the balanced reaction:

2 X 17g of ammonia releases 92.2 kJ of heat

34g of ammonia releases 92.2 kJ of heat

100g of ammonia will release =
(92.2)/(34) X 100 kJ of heat

= 271.18 kJ

Therefore, 100g of ammonia releases 271.18 kJ of heat.