Question

rate=k[A]^2[B]
1. If [A] is doubled what exactly will happen to the rate (assume [B] remains the same)?
2. If [B] is tripled what exactly will happen to the rate (assume [A] remains the same)?

Answer 1

\(rate=k[A]^2[B]\)

Assume, \([A]=[B]=1~M\), so \(rate=k[1]^2[1]=k\)

1. If we double [A], [A]=2 M

\(rate=k[2]^2[1]=4k\)

the rate quadrupled

2. If [B] is tripled, [B]=3 M

\(rate=k[1]^2[3]=3k\)

the rate tripled