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Date	November 2014	Marks available	1	Reference code	14N.1.hl.TZ0.21
Level	HL	Paper	1	Time zone	TZ0
Command term		Question number	21	Adapted from	N/A

Question

What happens to the rate constant, k, and the activation energy, \({E_{\text{a}}}\), as the temperature of a chemical reaction is increased?

N14/4/CHEMI/HPM/ENG/TZ0/21

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Additional higher level (AHL) » Topic 16: Chemical kinetics » 16.2 Activation energy

17N.1.hl.TZ0.22: Which pair of statements explains the increase in rate of reaction when the temperature...
17M.2.hl.TZ2.5c: The Arrhenius equation, \(k = A{e^{ - \frac{{Ea}}{{RT}}}}\), gives the relationship between...
17M.1.hl.TZ2.20: Which is true of an Arrhenius plot of \(\ln k\) (y-axis) against \(\frac{1}{T}\)? A. The...
16M.1.hl.TZ0.23: Which of the...
14M.1.hl.TZ1.21: The rate constant for a reaction is determined at different temperatures. Which diagram...
14M.2.hl.TZ1.2e: Suggest how the activation energy, \({E_{\text{a}}}\), for this reaction may be determined.
13N.2.hl.TZ0.1f.i: State the labels for each axis. x-axis: y-axis:
13N.2.hl.TZ0.1f.ii: Use the graph to determine the activation energy of the reaction, in...
13M.2.hl.TZ1.3b: Use the graph on page 8 to determine the value of the activation energy, \({E_{\text{a}}}\),...
13M.2.hl.TZ1.3c: On the graph on page 8, sketch the line you would expect if a catalyst is added to the...
12N.2.hl.TZ0.6e.iii: The rate of this reaction was measured at different temperatures and the following data were...
10N.1.hl.TZ0.21: What happens when the temperature of a reaction increases? A. The activation energy...
09N.1.hl.TZ0.21: The activation energy of a reaction may be determined by studying the effect of a particular...
09N.2.hl.TZ0.6d: Consider the following graph of \(\ln k\) against \(\frac{1}{T}\) for the first order...
09M.2.hl.TZ2.7d.iv: Calculate the activation energy, \({E_{\text{a}}}\), for the reaction, using Table 1 of the...
11M.2.hl.TZ1.2a: State how the rate constant, \(k\) varies with temperature,\(T\).
11M.2.hl.TZ1.2b: Determine the activation energy, \({E_{\text{a}}}\), for this reaction.
12M.2.hl.TZ2.9c: (i) The Arrhenius equation is shown in Table 1 of the Data Booklet. Identify the symbols...
11N.2.hl.TZ0.8h: HI(g) decomposes into \({{\text{H}}_2}{\text{(g)}}\) and...

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