Decomposition of A follows first order kinetics by the following equation.\[4A(g)\xrightarrow{{}}B(g)+2C(g)\]If initially, total pressure was 800 mm of Hg and after 10 minutes it is found to be 650 mm of Hg. What is half-life of A? (Assume only A is present initially).

Decomposition of A follows first order kinetics by the following equat

1.	Decomposition of A follows first order kinetics by the following equation.\[4A(g)\xrightarrow{{}}B(g)+2C(g)\]If initially, total pressure was 800 mm of Hg and after 10 minutes it is found to be 650 mm of Hg. What is half-life of A? (Assume only A is present initially).
A.	10 mins
B.	5 mins
C.	7.5 mins
D.	15 mins
Answer» C. 7.5 mins

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Decomposition of A follows first order kinetics by the following equation.\[4A(g)\xrightarrow{{}}B(g)+2C(g)\]If initially, total pressure was 800 mm of Hg and after 10 minutes it is found to be 650 mm of Hg. What is half-life of A? (Assume only A is present initially).

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