Question

give an example of a reaction where the following are involved (a) evolution of heat (b) absorption of heat (c) high pressure is required​

Answer 1

Answer:

(a) exothermic reaction

(b) exothermic reaction

(c) I don't know

Explanation:

a. Exothermic reaction : CaO +H2O-->Ca(OH)2

(here heat is evolved means more amount of heat generated)

b.endothermic reaction:CaCO3--->CaO+CO2

(Here heat is absorbed)

c. Sorry don't know

Answer 2

see the attached file............