Which of the following would increase the pressure acting on a closed-system chemical reaction?
adding a chemical inhibitor
increasing the temperature of the chemical reaction
decreasing the surface area of the reactants

Increase the temperature of the chemical reaction.

Explanation:

the reason you would increase the temperature to increase pressure is that heat usually makes reactions occur faster but also expands the gasses and solids itself. the expansion of gasses and solids creates more pressure in a closed-system.

the answer is b & c i believe : )

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