HARD
AS and A Level
IMPORTANT
Earn 100

The activation energy for the uncatalysed decomposition of ammonia to its elements is +335 kJ mol-1. Write the equation for this reaction including state symbols.

Important Questions on Rates of Reaction

HARD
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 9 - Rates of Reaction>EXAM-STYLE QUESTIONS>Q 5
The activation energy for the uncatalysed decomposition of ammonia to its elements is +335 kJ mol-1. The enthalpy of reaction for this decomposition is +92 kJ mol-. Calculate the activation energy for the uncatalysed formation of ammonia from nitrogen and hydrogen.
HARD
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 9 - Rates of Reaction>EXAM-STYLE QUESTIONS>Q 5
The activation energy for the uncatalysed decomposition of ammonia to its elements is +335 kJ mol-1. If tungsten is used as a catalyst, the activation energy changes. Explain how it will change.