For the hypothetical reaction: A + B --> C the following datawere collected: Exp

Question

For the hypothetical reaction: A + B --> C the following datawere collected:

Experiment        Temperature(K)          Initial[A] (M)    Initial [B](M)         Init. rate(M·s–1)
     1                    700      0.20                         0.10                    1.8 × 10–5
     2                    700                             0.40                         0.10                    3.6 × 10–5
     3                    700                             0.10      0.20                    3.6 × 10–5
     4                    600                             0.50                         0.50                    4.3 × 10–5

From this data, determine:
The rate constant at 700 K and the activation energy Ea for thisreaction

Explanation / Answer

Well the first step is obviously to determine the order ofreaction.
As A doubles the rate doubles. So A is of first order.. As B doubles the rate goes up by a factor of 4. So B is ofsecond order (ie 2^2=4) K*A*B^2=rate Now plug in a set of numbers and solve for K. K*.2*.1^2=1.8*10^-5 Now to find the EA for the reaction just plug a set of numbersand your K and temperature into an aerthis equation from yourbook. I hope this helps.

Related Questions

Navigate

• Browse (All)
• Browse F
• Subjects

---