Question

Q3 Assertion:Sublimation is the conversion between the solid and the gaseous phases of matter, with

no intermediate liquid stage.

Reason: Sublimation is an exothermic process accompanied with release of energy that causes

change of state.

a) Both A and R are true and R is the correct explanation of A.

b) Both A and R are true but R is not the correct explanation of A.

c) A is true but R is false.

d)A is false but R is true.​

Answer 1

Answer:-

Your Answer is Option c.

C) A is true but R is False.

Explanation:-

• Sublimation is an endothermic reaction.

• To find out the reason that why it is an endothermic reaction is not so difficult.

• By definition of sublimation we know that it is a process of conversion of solid to directly gas with no intermediate liquid phase. And hence it required energy to convert the solid into gas.

• And hence we can say that sublimation process requires energy, therefore it is a type of endothermic reaction.

Answer 2

Answer:

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