Solution Found!
Answer: Write a balanced equation and draw an approximate
Chapter 5, Problem 15P(choose chapter or problem)
Write a balanced equation and draw an approximate enthalpy diagram for each of the following changes: (a) the combustion of 1 mol of liquid methanol (CH3OH); (b) the formation of 1 mol of nitrogen dioxide from its elements (heat is absorbed).
Questions & Answers
QUESTION: Problem 15P
Write a balanced equation and draw an approximate enthalpy diagram for each of the following changes: (a) the combustion of 1 mol of liquid methanol (CH3OH); (b) the formation of 1 mol of nitrogen dioxide from its elements (heat is absorbed).
ANSWER:
Solution 15P
Here we have to Write a balanced equation and draw an approximate enthalpy diagram for each of the following changes:
(a) the combustion of 1 mol of liquid methanol (CH3OH)
(b) the formation of 1 mol of nitrogen dioxide from its elements (heat is absorbed).
Combustion reaction:- Combustion reaction involves the release of heat, it is an exothermic reaction.
Step 1
(a) A balanced chemical equation for the combustion reaction of 1 mol of liquid methanol is given below,
Methanol on combustion reaction forms carbon dioxide and H2O as the product along with release of heat.
10CH3OH (l) + 5O2 (g) → 10CO2 (g) + 2H2O (g) + heat
An approximate enthalpy diagram of combustion of methanol is given below,