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Increased temperature generally decreases the rate of a reaction?
Wiki User
∙ 12y ago
Some chemical reactions are of an endothermic nature which means that heat is absorbed by the system from its surrounding hence dissipating the heat within and reducing the temperature. What makes the decrease in temperature? The fact that heat is being removed from the system makes molecule reaction slow down their vibration rate, which reduces the systems kinetic energy hence reducing temperature.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoNo, in adiabatic exothermic reactions temperature increases.
Wiki User
∙ 14y agoReaction time would be increased do to the increased amount of kinetic energy necessary to create the reaction.
Wiki User
∙ 12y agoExothermic reactions release heat. The tmperature of ingrediants will rise as a result.
Wiki User
∙ 11y agoBecause the energy delivered to system is lower; see the link below for the Arrhenius equation.
Wiki User
∙ 8y agoThe rate increases
Wiki User
∙ 12y agoFalse
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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 Energy is absorbed from the surroundings and the temperature of the surroundings decreases' What reaction is this?
This is an endothermic reaction.
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.
How does temperature affect catalase activity?
Increased temp give increased reaction rate. Only an approximation, but 10 degrees is said to double the rate.
When water and ammonium nitrate mixed the temperature decreases. what type of reaction is this and why?
It is not a chemical reaction; ammonium nitrate is dissociated in water and this process is endothermic.
What effects does temperature have on chemical changes?
Generally the speed of reaction increase when the temperature is increased.
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 the temperature of a reaction increases reaches a maximum and then decreases?
The maximum temperature is attained when the reaction is completed.
What changes of temperature on rate of reaction?
The rate of reaction increases with increasing temperature. When the temperature is increased, the kinetic energy of the reacting particles hence the frequency of effective collisions are also increased. Hence the rate of reaction is faster.
How is the rate of reaction affected when the temperature increases?
As the temperature increases, the reaction time decreases.
When Energy is absorbed from the surroundings and the temperature of the surroundings decreases' What reaction is this?
This is an endothermic reaction.
What type of reaction occurs when two chemicals react together and the temperature decreases?
Endothermic reaction
Which piece of evidence would prove that a reaction is exothermic?
All you need is a thermometer. If the temperature rises as the reaction goes to completion, then the reaction is exothermic. If the temperature decreases, then it's endothermic.
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.
How do you enhance rate of reaction in CSTR?
rate of a reaction can be increased by increasing the temperature if the reactor
Will an increased temp and an increased concentration speed up a chemical reaction?
Generally, yes. Unless the product of the reaction should be ammonia for example, where a decreased temperature is needed. A catalyst from the transition metals will speed up a reaction too, for example a nickel catalyst in the process of the hydrogenation of margerine as it lowers the activation energy needed for the reaction to start. Increased pressure will also speed up the reaction, no matter what reaction is occurring.
How can exothermic reaction be identified?
by the increased temperature of the sorrounding environment.
