The decomposition of nitramide in aqueous solution at 25 C NH2NO2(aq) N2O(g) + H2O(1) is first order in NH NO2 with a rate constant of 4.70x10-5 st! If the initial concentration of NH NO2 is 0.320 M, the concentration of NH2 NO2 will be Mafter 37329 s have passed. The gas phase decomposition of dimethyl ether at 500 C CH3OCH3(9) CH4(9) + H2(g) + CO(g) is first order in CH3OCHz with a rate constant of 4.00x104 s 1 If the initial concentration of CH3OCH3 is 0.106 M, the concentration of CH3OCHz will be 2.53x10-2 M after s have passed The decomposition of ammonia on a tungsten surface at 1100 C NH3 1/2 N2 + 3/2 H2 is zero order in NHz. In one experiment, when the initial concentration of NH3 was 5.28x10-3 M, the concentration of NH3 dropped to 9.82x10-4 M after 848 seconds had passed. Based on these data, the rate constant for the reaction is Ms1 The gas phase decomposition of nitrosyl chloride at 400 K NOCI(9) NO(g) + 12 Cl2(9) is second order in NOCI with a rate constant of 5.90x10-4 M-1s-1 If the initial concentration of NOCI is 0.107 M, the concentration of NOCI will be M after 4.18x104 seconds have passed