Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: In an Ellingham diagram, the oxidation of carbon to carbon monoxide shows a negative s

Question

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: In an Ellingham diagram, the oxidation of carbon to carbon monoxide shows a negative slope with respect to temperature. Reason R: CO tends to get decomposed at higher temperature. In the light of the above statements, choose the correct answer from the options given below

(A) A is correct but R is not correct
(B) A is not correct but R is correct
(C) Both A and R are correct and R is the correct explanation of A
(D) Both A and R are correct but R is NOT the correct explanation of A

Prashant Kotian · Accepted Answer

Correct answer: A. ) g ( ) g ( ) s ( CO O 1 C    ng = 1  as number of moles of gas increases entropy increases. s = +ve G = H –TS slope = –S = –ve CO is not decomposed at high temperature.

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