For a reaction with rate constant 'c', which of the following is true for a first, second, and third order reaction?
1) The rate constant is numerically equal to 'c' for all three orders
2) The rate constant is numerically equal to 'c' only for first order reactions
3) The rate constant is numerically equal to 'c' only for second order reactions
4) The rate constant is numerically equal to 'c' only for third order reactions
