Notifications
Clear all
Chemical Reactions and Equations
1
Posts
2
Users
0
Likes
355
Views
0
03/09/2021 5:11 pm
Topic starter
What does one mean by exothermic and endothermic reactions? Give examples.
1 Answer
0
03/09/2021 5:12 pm
A chemical reaction in which certain amount of heat energy is evolved and resulting contents get heated up is called exothermic reaction.
Examples:
2H2(g) + O2(g) ➝ 2H2O(l) + heat
HCl(aq) + NaOH(aq) ➝ NaCl(aq) + H2O(l) + heat
A chemical reaction is said to be endothermic when certain amount of heat energy is absorbed.
Examples:
N2(g) + O2(g) + heat ➝ 2NO
C(s) + H2O(g) + heat ➝ CO(g) + H2(g)