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Graphs of a first order reaction: slope of rate against concentration and of log plots against time

This type of question, asked 7 times: 9 May 2024 S1, 11 May 2024 S1, 14 May 2024 S2, 26 Apr 2025 S2, 13 May 2026 S2, 14 May 2026 S2, 19 May 2026 S1. All 7 questions below, oldest first.

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  1. Question 1

    9 May 2024 S1

    56
    Which from following is the slope of the graph of rate versus concentration of the reactant for first order reaction?

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  2. Question 2

    11 May 2024 S1

    77
    Slope of the graph between log⁡[A]0[A]t\log\frac{[A]_0}{[A]_t} (y axis) and time (x axis) for first order reaction is equal to:

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  3. Question 3

    14 May 2024 S2

    97
    What is the value of rate constant for first order reaction if slope for the graph of rate versus concentration is 2.5×10−32.5 \times 10^{-3}

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  4. Question 4

    26 Apr 2025 S2

    94
    The slope of a graph log⁡[A]t\log\lbrack A\rbrack_{t} versus ' tt ' for first order reaction is −2.5×10−3 s−1- 2.5 \times10^{- 3}{\text{ }s}^{- 1}. Find rate constant of the reaction?

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  5. Question 5

    13 May 2026 S2

    29
    Calculate the rate constant of first order reaction if the slope of graph of log⁡[A]0/[A]t\log[A]_0/[A]_t versus time is 8.5×10−3 s−18.5 \times 10^{-3}\ \mathrm{s^{-1}}.

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  6. Question 6

    14 May 2026 S2

    28
    What is the slope for a first-order reaction plot of log⁡[A]0/[A]t\log[A]_0/[A]_t vs time (t)(t)?

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  7. Question 7

    19 May 2026 S1

    31
    Identify the nature of the graph obtained when rate versus initial concentration is plotted for first order reaction.

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