Q value of a nuclear reaction is positive. The reaction is (1) Exothermic (2) Endothermic (3) Elastic (4) Both exothermic and endothermic Also explain the concept of Q-value

The values of ∆H for endothermic and exothermic reactions are

The process of respiration is :

(a) an oxidation reaction which is endothermic

(b) a reduction reaction which is exothermic

(c) a combination reaction which is endothermic

(d) an oxidation reaction which is exothermic

The process of respiration is:

(a) an oxidation reaction which is endothermic

(b) a reduction reaction which is exothermic

(c) a displacement reaction which is endothermic

(d) an oxidation reaction which is exothermic