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  • The half life for the decomposition of gaseous compound A is 240 s when the gaseous pressure was 500 Torr initially. When the pressure was 250 Torr, the half life was found to be 4.0 min. The order

The half life for the decomposition of gaseous compound A is 240 s when the gaseous pressure was 500 Torr initially. When the pressure was 250 Torr, the half life was found to be 4.0 min. The order of the reaction is_________ . (Nearest integer)

Option: 1

1


Option: 2

-


Option: 3

-


Option: 4

-


Answers (1)

best_answer

Given, \mathrm{t_{1/2}=240 \; sec = 4 \; min}

\mathrm{P_{initial}=500 \; torr\; and\; P_{2}=250\; torr}

\mathrm{t_{v_{2}}} at \mathrm{P_{2}=4\; min}

Now, \mathrm{t_{1/2}\; at\; P_{i}=\; t_{1/2}\; at\; P_{2}}

So, \mathrm{t_{1/2}} is not dependent on pressure.

Hence, it will be first order reaction  because

Answer = 1

Posted by

Suraj Bhandari

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