rate of reactions - temperature and reversible reactions

Question 1

what happens if we increase temperature of a system?

Answer 1

equilibrium will shift to decrease ( endothermic side )

Question 2

what happens if we decrease the temperature of a system?

Answer 2

equilibrium will shift to increase the temperature (exothermic)

Question 3

2NO2 ⇌ N2O4

forward reaction: exothermic
backward reaction: endothermic

what happens if we increase temp?
what happens if we decrease temp?

Answer 3

1. more NO2 will form
2. more N2O4 will react