Which of the following will decrease the rate of a reaction?

Using powdered solids instead of whole pieces

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Selecting ionic reactants that have been dissolved in water

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Decreasing the temperature

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Increasing the pressure

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Adding a catalyst

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Solution

The correct option is E Decreasing the temperature
Decreasing the temperature will decrease the rate of a reaction.
The rate of the reaction is directly proportional to the absolute temperature.
As a rule of thumb, when temperature is increased by 10 K, the rate of reaction almost doubles.

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Similar questions

Q. Among the following which will decrease the rate of the reaction?
i. Using highly concentrated reactants
ii. Decreasing the temperature by

25 K

iii. Stirring the reactants

Q. Which one of the following is a correct statement?
(a) The amount of a solid that dissolves in water increases with a rise in temperature.
(b) The amount of a solid that dissolves in water at different temperatures is the same.
(c) The amount of different solutes that dissolve in water is always the same.
(d) The amount of a solute that dissolves in water decreases with a rise in temperature.

Which of the following statements is correct ?
(a) The rate of reaction decreases with passage of time as the concentration of reactants decreases
(b) The rate of reaction is same at any time during the reaction
(c) The rate of a reaction is independent of temperature change
(d) The rate of a reaction decreases with increase in concentration of reactant (s)

How does a rate of reaction change if we use the powdered form of reactants in place of pellets of reactants?

Q. Assertion: Temperature coefficient of a one-step reaction may be negative.
Reason: The rate of reaction having a negative order with respect to a reactant decreases with the increase in the concentration of the reactant

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Which of the following will decrease the rate of a reaction?

The correct option is E Decreasing the temperatureDecreasing the temperature will decrease the rate of a reaction.The rate of the reaction is directly proportional to the absolute temperature.As a rule of thumb, when temperature is increased by 10 K, the rate of reaction almost doubles.

The correct option is E Decreasing the temperature
Decreasing the temperature will decrease the rate of a reaction.
The rate of the reaction is directly proportional to the absolute temperature.
As a rule of thumb, when temperature is increased by 10 K, the rate of reaction almost doubles.