Consider the following first order gas phase reaction at constant temperature A(g) 2B(g) + C(g) If the total pressure of the gases is found to be 200 torr after 23 sec. and 300 torr upon the complete

Question

Consider the following first order gas phase reaction at constant temperature A(g) 2B(g) + C(g) If the total pressure of the gases is found to be 200 torr after 23 sec. and 300 torr upon the complete decomposition of A after a very long time, then the rate constant of the given reaction is____× 10–2 s–1 (nearest integer) [Given : log10(2) = 0.301]

Prashant Kotian · Accepted Answer

Correct answer: .. A(g)  2B(g) + C(g) 0 P P 2x    P 3P   P0 = 100 t P P K ln t P P      2.3 100 K log 300    –1 2.3 0.301 0.0301 3.01 10 sec      

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