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C) What is the rate law for this reaction? The chemical reaction, 2HCl(g) + N2O5

ID: 899293 • Letter: C

Question

C) What is the rate law for this reaction?

The chemical reaction, 2HCl(g) + N2O5(g) + Cl2(g) + H2O(g),is performed under two sets of conditions. in the first experiment, the initial concentrations of N2O5 and HCI were 0. 080 M and 2. 0 M, respectively. In the second experiment the initial concentrations of N2O5 and HCI were 0. 050 M and 3. 0 M, respectively Both experiments we conducted at 27degreeC. The graph below shows how [N2O5] changes with time in the two experiments. Use the data collected experimentally to answer the following questions. [N205] vs Time for Two Experiments

Explanation / Answer

The given graph is of first order kinetics with respect to reactant N2O5.

If the reaction rate is independent of concentration of HCl,

Then the rate law can be written as follows,

rate = k [N2O5]