Assertion :During change of state specific heat of the substance zero. Reason: Specific heat of a substance is directly proportional to change of heat and inversely proportional to change in temperature.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Assertion.
During change of state specific heat of the substance zero as during the phase change the change in temperature is zero hence the formula of heat capacity $Q = m c Δ T$ we have $Δ T = 0$
hence specif heat is zero at phase change.

Reason.
$c = \frac{Δ Q}{m Δ T}$ Specific heat of a substance is directly proportional to change of heat and inversely proportional to change in temperature.

Hence,Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Similar questions

Assertion (A) Rate constant determined from Arrhenius equation are fairly accurate for simple as well as complex molecules.

Reason (R) Reactant molecules undergo chemical change irrespective of their orientation during collision.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

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