Transcription of KINETICS Practice Problems and Solutions
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KINETICS Practice Problems and Solutions
KINETICS Practice Problems and Solutions Name: AP Chemistry Period: Date: Dr. Mandes The following questions represent potential types of quiz questions. Please answer each question completely and thoroughly. The Solutions will be posted on-line on Monday. 5. Please do #18 in chapter 12 of your text. a. This increases the [H2], which will increase the rate, but has no effect on k b. Due to Arrhenius equation, changing temperature changes the value of k. c. Catalyst function by lowering the activation energy, so due to Arrhenius equation, changing the activation energy changes the value of k. 6. Consider the reaction: P4 + 6 H2 4 PH3. A rate study of this reaction was conducted at 298 K. The data that were obtained are shown in the table. [P4], mol/L [H2], mol/L Initial Rate, mol/(L . s) x 10-4 x 10-4 x 10-4 a. What is the order with respect to: P4 __0___.
x1.20 103 0.444 x3.00 103 0.381 x4.50 103 0.340 x 9.00 103 0.250 x 1.80 104 0.174 a. Determine the rate law. b. Write the integrated rate law. c. Determine the value of the rate constant for the reaction. xd. Calculate the [NO 2] at 2.40 104 s after the start of the reaction.
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