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In the reaction 2A+Bto2C+D, 5 mol/lt of ...

In the reaction `2A+Bto2C+D`, 5 mol/lt of A are allowed to react with 2 mol/lt of B. After 5 seconds the concentration of A was found to be 4 molar. What is the rate of reaction in tems of A?

A

`0.1 M"sec"^(-1)`

B

`0.2M"sec"^(-1)`

C

`0.3M"sec"^(-1)`

D

`0.15 M"sec"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
`underset(5)(2A)+underset(3)(B)tounderset(0)(2C)+underset(0)(D)`
`(5-2x)(3-x)2xx,x=1//2,r_(A)=(5-4)/5=1/5=0.2` M/sec `, r=1/2xx(-d[A])/(dt)=0.2/2=0.1` M/sec
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