For, `underset(("excess"))(2A) + B+C rarr` Products, calculate the: (a) rate expression. (b) units of rate and rate constant. ( c) effect on rate if concentration of `A` is doubled and of `B` is tripled.

For, `underset(("excess"))(2A) + B+C rarr` Products, calculate the: (a

1.	For, `underset(("excess"))(2A) + B+C rarr` Products, calculate the: (a) rate expression. (b) units of rate and rate constant. ( c) effect on rate if concentration of `A` is doubled and of `B` is tripled.
Answer» (a) Rate `=K[A]^(0)[B]^(1)[C]^(1)` (b) Unit of rate = mol `litre^(-1) time^(-1)` Unit of rate constant = `litre mol^(-1) time^(-1)` (c ) Let initial conc. Of A, B and C be a, b and c, respectively. `:. r_(1)=K(a)^(0)(b)^(1)(c )^(1) …(1)` Now `[A]=2a,[B]=3b` `:. r_(2)=K(2a)^(0)(3b)^(1) (c )^(1) ...(2)` By eqs. (1) and (2), `r_(1)/r_(2)=1/3` `:. r_(2)=3 r_(1)`

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For, `underset(("excess"))(2A) + B+C rarr` Products, calculate the: (a) rate expression. (b) units of rate and rate constant. ( c) effect on rate if concentration of `A` is doubled and of `B` is tripled.

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