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Lowering the activation energy, Adding a cataylst
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∙ 10y ago
cassie rose
Adding a catalyst
lowering the activation energy
shanking the reactants
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A student performs a reaction twice. in the second trial she raises the temperature by 20 degrees C and notices that the reaction takes place more quickly. is the reaction endothermic?
Dang Flabbet.
Would a single sugar cube or an equal mass of graduated sugar crystals react more quickly in a chemical reaction?
The granulated sugar would react more quickly, as it has more surface area to react in.
How does a catalyst speed a reaction at low temperature?
A catalyst reduces the amount of energy required to produce the reaction. This speeds up the reaction and causes it to finish more quickly. Raising the temperature will also speed up a reaction.
How does catalyst enable a reaction to happen more quickly?
The work done by the catalyst is to change the mechanism of a reaction, actually the alternate way using the catalyst needs lesser energy to the same reaction without the catalyst.
Which would react more quickly in a chemical reaction a single sugar cube or an equal mass of sugar and crystals?
The sugar crystals because there is a greater amount of surface area readily exposed for chemical reaction.
What effect does bubbling nitrogen dioxide through water have on the reaction rate?
Generally speaking, reaction rate increases as concentration increases. If N2O5 is a reactant in a chemical reaction, a greater concentration of it means it will react more quickly. This is because there is more of that reactant available for the reaction.
Generally who will absorb alcohol into the blood more quickly?
a small-build female
A student performs a reaction twice. in the second trial she raises the temperature by 20 degrees C and notices that the reaction takes place more quickly. is the reaction endothermic?
Dang Flabbet.
How does an enzyme speed up its reaction?
Enzymes speed up a reaction by lowering the activation energy. This is the amount of energy required to start the reaction. By lowering the activation energy, the reaction can proceed much more quickly.
Why do front breaks wear out more quickly?
The front brakes generally do most of the work.
What are the factors affecting rate of reactoin?
There are 4 factors affecting rate: - Surface area -Temperature - Catalysts -Concentration If the surface area is increased the reaction rate will increase due to more particles being exposed to the reacting chemical, the more particles colliding the quicker the reaction will happen. Temperature causes particles to speed up or slow down, for example in a gas particles are moving very quickly, and therefore they collide more often, this would mean that a reaction would happen quickly since reaction depends on the amount of collisions as well as the strength of collisions. Catalysts are added substances into reactions which only help to speed up the reaction, they are not changed in the reaction and remain the same after the reaction has occurred. If concentration is increased more particles are given the chance to collide, so once again, with more collisions the more quickly a reaction occurs.
How is changing the rate of chemical reaction useful to us?
ECONOMICS AND SAFETY. A reaction is not as useful if it say takes a week. That would tie up a reactor for a long time resulting in more capital equipment being needed. A reaction that proceeds quickly is much more desirable and also ensures that customers are not let down. A reaction that proceeds too quickly can get out of control and be very unsafe.
Would a single sugar cube or an equal mass of graduated sugar crystals react more quickly in a chemical reaction?
The granulated sugar would react more quickly, as it has more surface area to react in.
Is reaction time in born or made?
A reaction time is born but is made at the same time. While you grow older and use your reaction more, your reaction time will become faster and better. So, your reaction time isn't born nor made.
How does a catalyst speed a reaction at low temperature?
A catalyst reduces the amount of energy required to produce the reaction. This speeds up the reaction and causes it to finish more quickly. Raising the temperature will also speed up a reaction.
How is an explosion created?
Explosions come in two types - deflagration and detonation. In deflagration the heat from the reaction quickly heats surrounding unreacted reactants causing the reaction to accelerate - producing more heat to accelerate the reaction even more, etc. Also with the rapid reaction, it compresses the gas around it further accelerating the reaction in the gas phase.In a detonation the reaction occurs so quickly that the reaction boundary outstrips the shockwave (which travels at sonic speed), compressing the material behind it as well as in front of it.Detonations are much more powerful than deflagrations.
What may be expected when K?
The concentration of one or more of the products is small, the reaction will not proceed very far to the right, and the reaction will generally form more reactants than products.
