MHT CET20242 May 2024Morning ShiftChemistryChemical KineticsActual
Rate law for the reaction 2 NO + Cl ₂ 2 NOCl is rate = k [ NO ]^2 [ Cl ₂ ] . When will the value of k increase?
Options
- Aby increasing temperature
- B. by increasing [NO]
- Cby increasing [ Cl ₂ ]
- Dby increasing both [ NO ] and [ Cl ₂ ]
Correct answer
A. by increasing temperature
Step-by-step solution
Arrhenius equation k = Ae ^ - E _ a / RT shows that, as the temperature rises, E _ a RT decreases. This causes an increase in e ^ - E _ a / RT which increases k and the rate of reaction.