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Topic: Integrated rate equations and half-life (zero and first order)· Chemical Kinetics

The given graph is a representation of kinetics of a reaction.[Graph: y versus x at constant temperature T]The y and x axes for zero and first order reactions, respectively are

The given graph is a representation of kinetics of a reaction.

[Graph: y versus x at constant temperature T]

The \(y\) and \(x\) axes for zero and first order reactions, respectively are

graph of y vs x at constant temperature T, horizontal line

1. zero order (\(y\) = rate and \(x\) = concentration), first order (\(y\) = rate and \(x\) = \(t_{1/2}\))

2. zero order (\(y\) = concentration and \(x\) = time), first order (\(y\) = \(t_{1/2}\) and \(x\) = concentration)

3. zero order (\(y\) = concentration and \(x\) = time), first order (\(y\) = rate constant and \(x\) = concentration)

4. zero order (\(y\) = rate and \(x\) = concentration), first order (\(y\) = \(t_{1/2}\) and \(x\) = concenration)

1 answer

Best answer

Answer: 4. zero order (\(y\) = rate and \(x\) = concentration), first order (\(y\) = \(t_{1/2}\) and \(x\) = concenration)

Key idea: a horizontal line means y is independent of x.

  • Zero order: rate \(=k\), independent of concentration. So y = rate, x = concentration.
  • First order: \(t_{1/2}=0.693/k\), independent of initial concentration. So y = \(t_{1/2}\), x = concentration.

Only option 4 gives these axes for both orders.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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