The Kinetics of the Decomposition of Dinitrogen Pentaoxide Is Studied

question 8

Multiple Choice

The kinetics of the decomposition of dinitrogen pentaoxide is studied at 50°C and at 75°C. Which of the following statements concerning the studies is correct?

• A)The rate at 75°C will be greater than the rate at 50°C because the activation energy will be lower at 75°C than at 50°C.
• B)The rate at 75°C will be greater than the rate at 50°C because the activation energy will be higher at 75°C than at 50°C.
• C)The rate at 75°C will be less than the rate at 50°C because the molecules at higher speeds do not interact as well as those at lower speeds.
• D)The rate at 75°C will be greater than at 50°C because the concentration of a gas increases with increasing temperature.
• E)The rate at 75°C will be greater than the rate at 50°C because the number of molecules with enough energy to react increases with increasing temperature.

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