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Ethyl chloride vapor decomposes by the first-order reaction C2H5ClC2H4+HCl The activation energy is 249kJ/mol and the frequency factor is 1.61014s1. Find the value of the specific rate constant at 730K. Express your answer using two significant figures. k= Find the fraction of the ethyl chloride that decomposes in 19 minutes at this temperature. Express your answer using one significant figure. Find the temperature at which the rate of the reaction would be twice as fast. Express your answer using two significant figures