Predict the conditions for forward reaction on the basis of Le Chatelier's principle for : 2SO2(g)+O2(g)⇌2SO3(g); ΔH=−198kJ
A
lowering the temperature and increasing pressure
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
any value of temperature and pressure
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
lowering of temperature as well as pressure
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
increasing temperature as well as pressure
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A lowering the temperature and increasing pressure Option (A) is correct. An increase in temperature favours endothermic reaction whereas an increase in pressure favours the reaction showing a decrease in mole or volume. An increase in temperature is the result of the flow of heat into the system. In an endothermic reaction, an increase in temperature favours the reaction to occur in the forward direction reverse in case of exothermic.
When there is a decrease in pressure, the equilibrium will shift towards the side of the reaction with more moles of gas.