Explain presence of a tungsten catalyst at high temperatures

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In the presence of a tungsten catalyst at high temperatures, the decomposition of ammonia to nitrogen and hydrogen is a zero order process. If the rate constant at a particular temperature is 3.7*10^-6 mol/L*sec, how long will it take for an ammonia concentration to drop from an initial concentration of 5.0*10^-4 M to 5.0*10^-5 M? What is the half life of the reaction under these conditions?

Reference no: EM13310778

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