Question

Temperature Effects of Equilibrium question.

Why does the temperature need to be converted to Kelvin?

A) Chemists always use Kelvin
B) Whenever the equilibrium constant is used the temperature must be in Kelvin
C) Must use an absolute scale
D) Enthalpy is always measured in Kelvin

Answer 1

A:- 1. Temperature effect of equilibrium:-

i) Exothermic reaction:- If the forward reaction is exothermic, at low temperature the forward reaction is takes place, at high temperature the reverse reaction is takes.

ii) Endothermic reaction:- If the forward reaction is endothermic, at high temperature the forward reaction is takes place, at low temperature the reverse reaction is takes place.

2. The temperature need to be converted to Kelvin:- All gaseous substances -273.15^o C exists in solid stste, the measurable quantities of gases at O^o C becomes zeros, to overcome from this problem, the temperature should convert from celcius to kelvin.

-273.15^o C = 0 K

A:- B) Whenever the equilibrium constant is used the temperature must be in Kelvin.