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2 NH3(g) → N2(g) + 3 H2(g) the average rate of disappearance of NH3 over the time period from t = 0 s to t = 5.07x103 s is found to be 1.50x10-6 M/s. What is the average rate of appearance of H2 over the same time period? M/s. Submit Examine the balanced chemical eguation, Is the rate of formation of Ha faster than or slower than the rate of disappearance of NHa?

2 NH3(g) → N2(g) + 3 H2(g) the average rate of disappearance of NH3 over the time period from t = 0 s to t = 5.07x103 s is found to be 1.50x10-6 M/s. What is the average rate of appearance of H2 over the same time period? M/s. Submit Examine the balanced chemical eguation, Is the rate of formation of Ha faster than or slower than the rate of disappearance of NHa?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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TUTOR Relative Reaction Rates and Stoichiometry The average rate of appearance of a product is proportional to the rate of disappearance of a reactant. The proportionality constant is derived from the balanced chemical equation. For example, if 2 mol product is formed for each 1 mol reactant, the rate of product appearance will be twice the rate of reactant disappearance. Step 1. Use the balanced chemical equation to determine the relationship between the rates of reactant disappearance and product appearance. Step 2. Calculate the rate of product appearance using the rate of reactant disappearance and the proportion between the two rates. For the decomposition of ammonia on a platinum surface at 856 °C 2 NH3(g) → N2(g) + 3 H2(g) the average rate of disappearance of NH3 over the time period from t = 0 s to t = 5.07x103 s is found to be 1.50×10-6 M/s. What is the average rate of appearance of H2 over the same time period? M/s. Submit Examine the balanced chemical equation. Is the rate of formation of H2 faster than or slower than the rate of disappearance of NH3? O faster O slower Submit The average rate of appearance of H2 is 3/2 the rate of disappearance of NH3. What is the average rate of appearance of H2 from t = 0 to 5.07x103 s? Rate of disappearance of NH3 = 1.50×10-6 M/s. M H2/s
Transcribed Image Text:TUTOR Relative Reaction Rates and Stoichiometry The average rate of appearance of a product is proportional to the rate of disappearance of a reactant. The proportionality constant is derived from the balanced chemical equation. For example, if 2 mol product is formed for each 1 mol reactant, the rate of product appearance will be twice the rate of reactant disappearance. Step 1. Use the balanced chemical equation to determine the relationship between the rates of reactant disappearance and product appearance. Step 2. Calculate the rate of product appearance using the rate of reactant disappearance and the proportion between the two rates. For the decomposition of ammonia on a platinum surface at 856 °C 2 NH3(g) → N2(g) + 3 H2(g) the average rate of disappearance of NH3 over the time period from t = 0 s to t = 5.07x103 s is found to be 1.50×10-6 M/s. What is the average rate of appearance of H2 over the same time period? M/s. Submit Examine the balanced chemical equation. Is the rate of formation of H2 faster than or slower than the rate of disappearance of NH3? O faster O slower Submit The average rate of appearance of H2 is 3/2 the rate of disappearance of NH3. What is the average rate of appearance of H2 from t = 0 to 5.07x103 s? Rate of disappearance of NH3 = 1.50×10-6 M/s. M H2/s
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