Which of the following are exothermic reactions and which are endothermic? (a) The explosion of dynamite...

Which of the following are exothermic reactions and which are endothermic?

(a) The explosion of dynamite is:
                        exothermic
                                  or
                        endothermic

(b) The dissociation of calcium chloride in water is:
                         exothermic
                                   or
                         endorthermic

Solutions

Expert Solution

(a) In explosion of dynamite energy is given off in the form of heat and light . Since energy is released it is an EXOTHERMIC reaction.

(b) The Dissociation of Calcium chloride will be an ENDOTHERMIC reaction, as it takes energy to break the lattice structure.

Note:- Only dissociation of Calcium chloride is ENDOTHERMIC, as they dissociates they form bonding with water molecules which is an EXOTHERMIC reaction. Overall reaction is EXOTHERMIC as energy is overall released.

queen_honey_blossom answered 1 year ago

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