Question

2gm of barium hydroxide in a test tube. then she added 1gm of ammonium chloride and stir with the help of aglass rod. then she touched the bottom of the test tube with her palm. she felt cold then. a what is the reason for that .b. write balanced chemical equation of this reaction

Answer 1

When we mix barium hydroxide with ammonium chloride, the bottom of the test tube becomes cold due to absorption of heat. So, it is an endothermic reaction.

This reaction absorbs heat from its environment to be completed, so it is an endothermic reaction.

Ba(OH)+NH4cl=BaCl2+NH4OH