Chemistry

Chemistry

Problem

For the reaction 2A→3B2\text{A}\rightarrow 3\text{B}, which expression correctly relates the average rate of formation of B to the average rate of disappearance of A? a) Δ[B]Δt=23(−Δ[A]Δt)\dfrac{\Delta[\text{B}]}{\Delta t}=\dfrac{2}{3}\left(-\dfrac{\Delta[\text{A}]}{\Delta t}\right) b) Δ[B]Δt=32(−Δ[A]Δt)\dfrac{\Delta[\text{B}]}{\Delta t}=\dfrac{3}{2}\left(-\dfrac{\Delta[\text{A}]}{\Delta t}\right) c) Δ[B]Δt=3(−Δ[A]Δt)\dfrac{\Delta[\text{B}]}{\Delta t}=3\left(-\dfrac{\Delta[\text{A}]}{\Delta t}\right) d) Δ[B]Δt=32 Δ[A]Δt\dfrac{\Delta[\text{B}]}{\Delta t}=\dfrac{3}{2}\,\dfrac{\Delta[\text{A}]}{\Delta t}

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