What parameter must remain the same for k to be a constant in the rate law equation?

temperature
pressure
volume
activation energy

I think it means the reaction doesn't have any intermediate phases - the order doesn't change, and it moves at the same rate, it doesn't speed up or slow down at any time

A) the enthralling of formation for pure element in its standard state is always positivehope this : )

The answer is the first option just took the test