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For reaction A((g))toB((g))+C((g))+D((g)...

For reaction `A_((g))toB_((g))+C_((g))+D_((g))` at 750 K the rate constant is `2.3xx10^(-3)"min"^(-1)`. Starting with a pressure of 400 mm of Hg at this temperature in a closed container how, many minutes would it take for the pressure in the container to become 760 mm Hg (log 11=1.041)

A

360

B

460

C

260

D

460

Text Solution

Verified by Experts

The correct Answer is:
C
`AtoB+C+D`
`t_(1)=0}400" "0" "0" "0`
`t_(2)=t}400-x" "x" "x" "x`
`implies400+2x=760,2x=360,x=180`
`Kxt=2.303log((P_(0))/(P_(t))),2.3xx10^(-3)xxt=2.303xxlog(400/220),t=10^(3)xxlog(40/22)`
`=10^(3)xx0.2595=259.59` min`~=` 260 min
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