- Joined
- Feb 21, 2007
- Messages
- 278
- Reaction score
- 3
1- The half-life for the first-order conversion of cyclobutane to ethylene, C4H8(g) ---> 2 C2H4(g), is 22.7s at a particular temp. How many sec. are needed for the partial pressure of cyclobutane to decrease from 100mmHg to 10mmHg?
52s
90s
75.4s
227s
-half-life problems are normally easy, but for some reason, I can't seem to get the answer for this one.
2. What is the activation energy of a reaction if the rate constant increases by a factor of 10 when the temp is raised from 303K to 333K
64kJ
33kJ
30kJ
46kJ
-i just don't know how to go about this problem
52s
90s
75.4s
227s
-half-life problems are normally easy, but for some reason, I can't seem to get the answer for this one.
2. What is the activation energy of a reaction if the rate constant increases by a factor of 10 when the temp is raised from 303K to 333K
64kJ
33kJ
30kJ
46kJ
-i just don't know how to go about this problem
