For the reaction 2 A + 2 B → 2 C + D , the rate law is expressed as rate = k [ A ] 2 [ B ] . Calculate the rate constant if rate of reaction is 0.24 mol dm − 3 s − 1 . ([ A ] = 0.5 M and [ B ] = 0.2 M

Question

For the reaction 2 A + 2 B → 2 C + D , the rate law is expressed as rate = k [ A ] 2 [ B ] . Calculate the rate constant if rate of reaction is 0.24 mol dm − 3 s − 1 . ([ A ] = 0.5 M and [ B ] = 0.2 M )

TestHub · Accepted Answer

Rate = k [ A ] 2 [ B ] ∴ k = [ A ] 2 [ B ] Rate ​ = ( 0.5 mol dm − 3 ) 2 ( 0.2 mol dm − 3 ) 0.24 mol dm − 3 s − 1 ​ = 4.8 mol − 2 dm 6 s − 1

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