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Unformatted text preview: Exam 1 Question 4 z For the reaction 2 N 2 O 5 (g) 4 NO 2 (g) + O 2 (g) , the following data were collected. Answer the following questions based on the experimental data. z a. The first half-life for this experiment is approximately ________________. z b. The second half-life for this experiment is approximately _____________. z c. The concentration of O 2 at 10 minutes is _________________________. z d. The concentration of NO 2 at 50 minutes is ________________________. z e. The rate of appearance of NO 2 is _______________ times the rate of appearance of O 2 . z f. The rate of appearance of NO 2 is __________ times the rate of disappearance of N 2 O 5 . 0.15 70 0.28 50 0.37 40 0.50 30 0.68 20 0.92 10 1.24 [N 2 O 5 ] (M) Time (min) Equilibrium is reached in chemical reactions when: t h e r a t e s o f t h e f o r w a . . t h e c o n c e n t r a t i o n s o f t . . t h e t e m p e r a t u r e s h o w . . . a l l c h e m i c a l r e a c t i o n s . . . t h e f o r w a r d r e a c t...
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