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Chemistry · 2023 · 1 mark
CBSE 2023 · Region 5 · Set 1 · Q13
The following experimental rate data were obtained for a reaction carried out at 25 °C: A_( g ) + B_( g ) → C_( g ) + D_( g ) What are the orders…
The following experimental rate data were obtained for a reaction carried out at $\displaystyle 25$ °C : $\displaystyle \mathrm{A}_{(\mathrm{g})}+\mathrm{B}_{(\mathrm{g})} \rightarrow \mathrm{C}_{(\mathrm{g})}+\mathrm{D}_{(\mathrm{g})}$
What are the orders with respect to $\displaystyle \mathrm{A}_{(\mathrm{g})}$ and $\displaystyle \mathrm{B}_{(\mathrm{g})}$ ?
| Initial $\displaystyle \left[\mathrm{A}_{(\mathrm{g})}\right] / \mathrm{mol} \mathrm{dm}^{-3}$ | Initial $\displaystyle \left[\mathrm{B}_{(\mathrm{g})}\right] / \mathrm{mol} \mathrm{dm}^{-3}$ | Initial rate/mol $\displaystyle \mathrm{dm}^{-3} \mathrm{~s}^{-1}$ |
| $\displaystyle 3.0 \times 10^{-2}$ | $\displaystyle 2.0 \times 10^{-2}$ | $\displaystyle 1.89 \times 10^{-4}$ |
| $\displaystyle 3.0 \times 10^{-2}$ | $\displaystyle 4.0 \times 10^{-2}$ | $\displaystyle 1.89 \times 10^{-4}$ |
| $\displaystyle 6.0 \times 10^{-2}$ | $\displaystyle 4.0 \times 10^{-2}$ | $\displaystyle 7.56 \times 10^{-4}$ |
Official answer
(C)
Second, Zero
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