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The foll.wing data were measured for the reduction of nitric oxide with hydrogen. 2NO(g)+2H 2 (g)→N 2 (g)+2H 2 O(g) Initial oncentration/(mol·dm -3 ) Initial rate of formation of H 2 O/mol·dm -3 ·s -1 c(NO) c(H 2 ) 0.10 0.10 0.20 0.10 0.20 0.10 1.23×10 -3 2.46×10 -3 4.92×10 -3 What is the rate equation for the reaction?