(a) The reaction is first H2O2(aq) H2O(I) + O2(g) is first order. Near room temperature,...

Question:

(a) The reaction is first H2O2(aq) → H2O(I) + ½ O2(g) is first order. Near room temperature, the rate constant equals 7.0 × 10-4s-1. Calculate the half-life at this temperature.
(b) At 415 oC, (CH2)2O decomposes in the gas phase, (CH2)2O(g) → CH4(g) + CO(g).
If the reaction is first order with a half-life of 56.3 min at this temperature, calculate the rate constant in s-1?