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Types of Chemical Reactions

which reactio...

Question

which reactions are mostly exothrmic endothermic?

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Solution

Dear Student,
Exothermic reactions are those in which release of the heat takes place.
While in endothermic reaction absorption of the heat takes place.

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Q. (a) What do you understand by exothermic and endothermic reactions?
(b) Give one example of an exothermic reaction and one of an endothermic reaction.
(c) Which of the following are endothermic reactions and which are exothermic reactions?
(i) Burning of natural gas
(ii) Photosynthesis
(iii) Electrolysis of water
(iv) Respiration
(v) Decomposition of calcium carbonate

Q. Reactions involving ___ changes are called endothermic or exothermic reactions.

Q. What are exothermic and endothermic reactions? Give examples.

(a) What do you understand by exothermic and endothermic reactions ?

(b) Give one example of an exothermic reaction and one of an endothermic reaction.

(c) Which of the following are endothermic reactions and which are exothemic reactions ?

(i) Buring of natural gas (ii) Photosynthesis

(iii) Electrolysis of water (iv) Respitation

(v) Decomposition of calcium carbonate

The values of ∆H for endothermic and exothermic reactions are

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