The reaction between nitrogen and hydrogen to form ammonia is exothermic in nature.
If reaction between nitrogen and hydrogen to form ammonia is exothermic, then it will be accompanied by:
Assertion: Nitrogen and hydrogen combine together to form ammonia and heat. Reason: It is an exothermic reaction.
Statement: Nitrogen and hydrogen combine together to form ammonia and heat
Conclusion: It is a combination and an exothermic reaction.
Statement 1: Nitrogen and hydrogen combine together to form ammonia. Statement 2: It is an exothermic reaction.