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  • True initial rate of zero order reaction of the gaseous reaction A(g)\rightarrow 2B(g)\: \: is\: \: 10^{-2}M\, min^{-1}. If the initial conc

The initial rate of zero-order reaction of the gaseous equation A (g) → 2B (g) is 10-2 M min-1 if the initial concentration of A is 0.1 M. What would be a concentration of B after 60 seconds?

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\begin{aligned} &\text {For a zero order reaction, the rate law expression is } \mathrm{R}=\mathrm{k}[\mathrm{A}]^{0}=\mathrm{k}=10^{-2}\\ \\ &\mathrm{t}=60 \mathrm{s}=1 \mathrm{min}\\\\ &\left[\mathrm{A}_{0}\right]-[\mathrm{A}]=\mathrm{K} \mathrm{t}\\ &0.1-[\mathrm{A}]=10^{-2} \times 1\\ &[\mathrm{A}]=0.09 \mathrm{M}\\ &[\mathrm{B}]=2[\mathrm{A}]\\ &=2(0.1-0.09)\\ &=0.02 \mathrm{M} \end{aligned}

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