TimeConsider the reaction represented by the equation2 X + 2Z X,Z2. During a reaction in whicha large excess of reactant X was present, theconcentration of reactant Z was monitored overtime. A plot of the natural logarithm of theconcentration of Z versus time is shown in thefigure above. The order of the reaction withrespect to reactant Z is(A) zero order(B) first order(C) second order(D) third order N2(8) + 3 H,(g) 2 2 NH,(8)AH398 =-92 kJ/mol,i AG298 =-33 kJ/mol,Consider the reaction represented above at 298 K.When equal volumes of N,(g) and H,(g), each at1 atm, are mixed in a closed container at 298 K,no formation of NH,(g) is observed. Which of thefollowing best explains the observation?(A) The N2(g) and the H,(g) must be mixed in a1:3 ratio for a reaction to occur.(B) A high activation energy makes the forwardreaction extremely slow at 298 K.(C) The reaction has an extremely smallequilibrium constant, thus almost noproduct will form.(D) The reverse reaction has a lower activationenergy than the forward reaction, so theforward reaction does not occur.

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Time Consider the reaction represented by the equation 2X + 22 - X,Z,. During a reaction in which a large excess of reactant X was present, the concentration of reactant Z was monitored over time. A plot of the natural logarithm of the concentration of Z versus time is shown in the figure above. The order of the reaction with respect to reactant Z is Izl uI

Time Consider the reaction represented by the equation 2X + 22 - X,Z,. During a reaction in which a large excess of reactant X was present, the concentration of reactant Z was monitored over time. A plot of the natural logarithm of the concentration of Z versus time is shown in the figure above. The order of the reaction with respect to reactant Z is Izl uI

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Time
Consider the reaction represented by the equation
2 X + 2Z X,Z2. During a reaction in which
a large excess of reactant X was present, the
concentration of reactant Z was monitored over
time. A plot of the natural logarithm of the
concentration of Z versus time is shown in the
figure above. The order of the reaction with
respect to reactant Z is
(A) zero order
(B) first order
(C) second order
(D) third order

N2(8) + 3 H,(g) 2 2 NH,(8)
AH398 =-92 kJ/mol,i AG298 =-33 kJ/mol,
Consider the reaction represented above at 298 K.
When equal volumes of N,(g) and H,(g), each at
1 atm, are mixed in a closed container at 298 K,
no formation of NH,(g) is observed. Which of the
following best explains the observation?
(A) The N2(g) and the H,(g) must be mixed in a
1:3 ratio for a reaction to occur.
(B) A high activation energy makes the forward
reaction extremely slow at 298 K.
(C) The reaction has an extremely small
equilibrium constant, thus almost no
product will form.
(D) The reverse reaction has a lower activation
energy than the forward reaction, so the
forward reaction does not occur.

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