Why does a mixture of hydrogen gas and bromine gas react together faster at a temperature of 500 K than it does at a temperature of 400 K?
1 |
A higher proportion of effective collisions occurs at 500 K. |
2 |
Hydrogen molecules and bromine molecules collide more frequently at 500 K. |
3 |
The activation energy of the reaction is lower at 500 K. |
1 only
1 and 2
3 only
1, 2 and 3
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