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The reaction A(g) to B(g) + 2C(g) is a f...

The reaction `A(g) to B(g) + 2C(g)` is a first-order reaction with a rate constant of `2.303 xx 10^(-3)s^(-1)`. Strating with 0.1 moles of 'A' in a 2 litre vessel, find the concentration of A after 301 sec when the reaction is allowed to take place at constant pressure at 300 K.

A

`0.0125 M`

B

`0.025 M`

C

`0.05 M`

D

none of these

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The correct Answer is:
A
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