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
Correct Answer: B
Solution :
\[4A(g)\xrightarrow{{}}\] | B(g) + | 2C(g) | |
t = 0 | 800 | \[-\] | \[-\] |
t = 10 minutes, | 800 - 4p | p | 2p |
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