(a)(i) Define entropy (ii) What term is used to describe a reaction in which heat...
CHEMISTRY
WAEC 1997
(a)(i) Define entropy
(ii) What term is used to describe a reaction in which heat is absorbed from the surrounding?
(b) State two conditions that can lead to ineffective collisions during a chemical reaction.
Explanation
(a)(i) Entropy is defined as the degree of disorderliness or randomness in a chemical system.
(ii) Endothermic
(b)(i) Energy barrier
(ii) Activation energy.
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