At `380^(@)C` , the half-life periof for the first order decompoistion of `H_(2)O_(2)` is `360 min`. The energy of activation of the reaction is `200 kJ mol^(-1)`. Calculate the time required for `75%` decompoistion at `450^(@)C`.

At 380^(@) the half-life period for thefirst order decomposition of H_(2)O_(2) is 360 min. The energy of activation of the reaction is 200 kJ mol^(-) . Calculation the time required for 75% decomposition at 450^(@) C (1) 20.35 min, (2) 40.7 min ( c) 120 min (d) 60 min

At 278 ""^(@)C the half life period for the first order thermal decomposition of ethylene oxide is 363 min and the energy of activation of the reaction is 52,00 cal/mole. From these data estimate the time required for ethylene oxide to be 75% decomposed at 450^(@)C .

If the half-lives of the first order reaction at 350 K and 300 K are 2 and 20 seconds respectively, the activation energy of the reaction in kJ "mol"^(-1) is :

The half-life periof for catalystic decompoistion of AB_(3) at 50 mm is found to be 4 hr and at 100 mm it is 2.0 hr . The order of reaction is