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Given the equation representing a system at equilibrium in a sealed, rigid container:

August 2019 NY Regents Chemistry Exam



42 Given the equation representing a system at equilibrium in a sealed, rigid container:




Increasing the temperature of the system causes the concentration of (1) HI to increase (2) H2 to increase (3) HI to remain constant

(4) H2 to remain constant



Solution: We can see that the energy is on the right side of the equation. Increasing the temperature would increase the energy. In order to reestablish the equibrium, we need to decrease energy and would shift to the opposite side (left). Shifting to the left would increase the concentration of HI and decreases the concentration of I2 and H2.

Answer: 1


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