Exam3 - Name 1 Define the following terms a Catalyst b Activation Energy c Rate Law d Reaction Order e Mechanism f Rate-determining step g Method of

Exam3 - Name 1 Define the following terms a Catalyst b...

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Name:______________________________________ 1. Define the following terms: a) Catalyst b) Activation Energy c) Rate Law d) Reaction Order e) Mechanism f) Rate-determining step g) Method of Isolation h) Method of Initial Rates i) Elementary reaction j) Half-life
2. Dinitrogen pentoxide decomposes according to the following reaction: 2 N 2 O 5 4 NO 2 + O 2 The rate of any reaction can be expressed in terms of the disappearance of reactants or the appearance of products. These expressions for the rate must be positive and equivalent. Considering this, write three expressions for the rate of the above reaction.
3. The thermal decomposition of acetaldehyde is given by the following reaction: CH 3 CHO CH 4 + CO At 800 K, the following data are obtained: Reactant concentration Rate of decomposition of CH3CHO [ CH 3 CHO] (M) -d[CH 3 CHO]/dt (Ms-1) 0.100 9.0 x 10-7 0.200 36 x 10-7 0.400 14.4 x 10-6 a) Write the rate equation for the reaction. b) What is the order of the reaction? c) Calculate the rate constant for the reaction at 800K.

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