In: Chemistry
The ΔHvap of a certain compound is 22.01 kJ·mol–1 and its ΔSvap is 54.70 J·mol–1·K–1. What is the boiling point of this compound?
Answer – We are given, amide and water and this is the hydrolysis of amide gives carboxylic acid and amine as the product as follow –
The ΔHvap of a certain compound is 22.01 kJ·mol–1 and its ΔSvap is 54.70 J·mol–1·K–1. What is the boiling point of this compound?
Answer – We are given, ΔHvap = 22.01 kJ·mol-1 , ΔSvap = 54.70 J·mol-1.K-1
We need to convert the ΔSvap J to kJ
We know,
1000 J = 1 kJ
So, 54.70 J = ?
= 0.05470 kJ
We know formula
T = ΔHvap / ΔSvap
= 22.01 kJ·mol-1 / 0.05470 J·mol-1.K-1
= 402.4 K
So, boiling point of this compound = 402.4- 273.15
= 129.2 oC.
so boiling point of this compound is 402 K or 129.2oC