Answer :
Answer:
The correct answer is option A) Decrease the temperature.
Explanation:
To solve this problem, let's examine each individual answer choice using Le Chatelier's Principle. As a reminder, this principle states that if there is a change in a system, then the system will shift in such a way to minimize this change and maintain equilibrium.
A: If the temperature of the system is decreased, by Le Chatelier's Principle, the system will shift to increase the temperature. The positive delta H value indicates that the reaction is endothermic, which means that heat can be considered "a reactant". To increase the temperature of the system, the system will shift to the left to produce more heat, so this is the correct answer.
B: Adding more NOBr will drive the system to use up this increased reactant, shifting the equilibrium to the right. This answer is incorrect.
C: Increasing the container volume would cause the system to shift towards whichever side of the reaction produces more moles of gas. Since there are three moles of gas produced in the products compared to two moles of gas in the reactants, this means that the reaction will shift to the right with this change. Therefore, this answer is also incorrect.
D: Removing NO will encourage the system to produce more NO, which is a product of the reaction. This will shift the system to the right; therefore, this answer is also incorrect.
The correct answer is option A - decreasing the temperature.
Check out these other questions on Brainly for more information about Le Chatelier's Principle:
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