8.which of the a reactant? Circle your answer following is not a possible graph

Question

8.which of the a reactant? Circle your answer following is not a possible graph of concentration versus time for Time 9. A scientist conducts an experiment to determine the rate of NO formation in the reaction: N2g)+Oag) 2NO)If the initial concentration of N2 was 0.500 M and the concentration of N2 was 0.450 M after 0.100 s, what is the rate of NO formation? a. 0.500 M/s b. 10.0 M/s c. 1.00 M/s d. 0.250 Ms e. 5.00 M's 1-10. The reaction 2NOa) + 02a, 2NOag) has the following rate law: Rate O2lINO. If the concentration of NO is reduced by a factor of two, the rate will do which of the following? d. remain the a. double. b. be reduced by one-half same. c. quadruple. e. be reduced by one-quarter. A 11. The equilibrium constant for the formation of hydrogen iodide from hydrogen Hag) + lays) 2HI(g) K-45 and iodine is 45 at a certain temperature. Which of the following is true regarding this equilibrium? I. The reaction is product favored Il. The reaction is reactant favored II. Equilibrium lies to the right. V. Equilibrium lies to the left. a. I and b.land IV c. Il and ill d. II and IV e. None are true, as the concentrations of reactants and prodcts are essentially the

Explanation / Answer

8) The concentration of reactant decreases with increase in time. Thus the graph D is not possible graph

Answer : D

9) rate of formation of NO = 1/2[N2]/dt = 1/2(0.5-0.45)/0.1 = 0.250 M/s

Answer : D

10) Since, the order of reaction with respect to NO is 2. If concentration is halved rate will reduced to one-half

Answer: B

11) Answer A (both I and III are true)

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