Question

Activity :
Take about 2g of barium hydroxide in a test tube. Add 1g of ammonium chloride and mix it with help of a glass rod. Touch the bottom of the test tube with your palm. What do you feel ? Is this exothermic reaction?

Answer 1

Answer:

Ba(OH)2 + NH4Cl ------ BaCl + NH4(OH)2. 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.

Explanation:

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