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If the temperature of a reaction increases what happens to the value of the equilibruim constant?
Wiki User
∙ 13y ago
Equilibrium constant changes when temperature changes. For an endothermic reaction, the equilibrium constant increases with temperature while for an exothermic reaction equilibrium constant decreases with increase in temperature. Equilibrium constants are only affected by change in temperature.
Wiki User
∙ 13y ago
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What happens to the rate constant of a chemical reaction when the temperature increases?
Increasing the temperature will cause there to be an increase in kinetic energy. This results in an increase in collision frequency, and eventually an increase in rate of reaction as well.
When hydrochloric acid neutralizes sodium hydroxide the temperature increases is this exothermic or endothermic?
When the temperature increases as a result of reaction, as specified here, the reaction is exothermic.
As the temperature of a chemical reaction in the gas phase is increased the rate of the reaction increases because?
Increasing the temperature generally increases the speed with which molecules move.
Why does an increase reaction temperature generally increase the reaction rate?
All chemical reactions must be thought of as collisions between the particles of reactants and products. As the temperature of the reaction increases, the energy of the particles also increases and so there is a greater chance of more collisions occuring, and as a result, in general, an increase in reaction temperature increases the reaction rate
How does increasing the temperature effect a chemical reaction?
Raising the temperature makes chemical reactions faster.
The equilibruim constant is the ratio of product concentration to reactant concentration at equilibruim A reaction will likely go to completion if the equilibrium constant?
a} Is very high.
Is it true when a reaction is at a equilibruim increasing the temperature favors the reaction that releases energy as heat?
No that is false. Increasing temperature favors the reaction that absorbs energy, not that releases energy as heat.
How is the rate of reaction affected when the temperature increases?
As the temperature increases, the reaction time decreases.
What happens to the rate constant of a chemical reaction when the temperature increases?
Increasing the temperature will cause there to be an increase in kinetic energy. This results in an increase in collision frequency, and eventually an increase in rate of reaction as well.
Why do chemical reactions happen faster at high temperature?
Many reactions are of the form:dCA/dt = kCAdCA/dt is the change in concentration of A with timek is the reaction rate constantCA is the concentration of AThe rate constant often exhibits an Arrhenius relationship, so:k=Ae^(-Ea/RT)A is a pre-exponential term (constant)Ea is the activation energy of the reaction (constant)R is the universal gas constant (constant)T is the temperature of the reactionTherefore, as T increases, the value of the exponential term increases. This means that k will increase as T increases, and therefore dCA/dt will increases as T increases.Hope that helps!
Is temperature essential in determining the reaction rate?
yes, as the reaction rate increases with increase in the temperature
Why does the temperature of a reaction increases reaches a maximum and then decreases?
The maximum temperature is attained when the reaction is completed.
As the temperature of a chemical reaction in the gas phase is increased the rate of the reaction increases because?
Increasing the temperature generally increases the speed with which molecules move.
When hydrochloric acid neutralizes sodium hydroxide the temperature increases is this exothermic or endothermic?
When the temperature increases as a result of reaction, as specified here, the reaction is exothermic.
What effects the rate constant of a reaction?
The temperature of the system
Why does an increase reaction temperature generally increase the reaction rate?
All chemical reactions must be thought of as collisions between the particles of reactants and products. As the temperature of the reaction increases, the energy of the particles also increases and so there is a greater chance of more collisions occuring, and as a result, in general, an increase in reaction temperature increases the reaction rate
What makes in increase in temperature change the reaction rate?
It increases the collisions that result in a reaction. or it increases the kinetic energy of the molecules.
