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How is the activation energy related to whether or not collision between molecules is successful?
Wiki User
∙ 7y ago
Generally speaking, the lower the activation energy, the more successful collision between molecules will happen.
Wiki User
∙ 7y ago
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How does a temperature increase affect collision between molecules?
The number of collisions with enough energy to react increases.
What is the relationship between the temperature of a solvent and the amount of solute it dissolves?
There isn't a relationship between the two - think of temperature as a catalyst. It speeds up the rate at which the solvent dissolves the solute (as it provides more energy to ensure that the collision theory is more successful) - however, a solution will still become saturated at the same point regardless of temperature. Note: In order for the collision theory to be successful, particles must collide with the correct energy, and at the correct orientation.
Why does a catalyst cause a reaction to proceed faster?
It decreases the activation energy, or the energy barrier the reactants must go through to form products. This is the same thing as the energy of the transition state. By decreasing the activation energy necessary for the reaction to occur, more reactants are able to form products since not as much energy is needed. See the Web Links to the left of this answer for more information.
What energy is required for the reaction to occur?
Activation energy. The kinetic energy from collisions between particles is used to reach the transition state
How does an iron catalyst affect the rate of reaction?
All first row/period transition metals, iron included, are good catalysts. They provide a surface on which the reactants can briefly adhere, thereby slightly altering the electronic energies/ arrangements. This allows the other reactant to react quicker, thereby the electronic arrangements change again and the new molecule detaches from the catalytic surface. NB Catalysrs speed up a reaction. and Inhibitors slow down a reaction.
Nitrogen Oxide and ozone sometimes react to produce nitrogen dioxide and oxygen The collision between the two molecules does not always lead to a reaction Explain why?
Activation energy. Intermediary molecules (catalysts) required.
What two conditions must be met for a collision between reactant molecules to be effective in producing new chemical species?
The colliding species must have the necessary activation energy and the correct orientation.
How does a temperature increase affect collision between molecules?
The number of collisions with enough energy to react increases.
What does the motion and collision between molecules cause?
Energy.
Why does increasing the temperature of a reaction increase its rate?
It provides energy to overcome the activation energy.
Why don't all collisions between reactant molecules lead to product formation?
For most reactions, chemical reaction requires that molecules acquire greater than average energy. This is called the "activation energy", and only some collisions impart a sufficient amount of energy.
Difference between threshold energy and activation energy?
THRESHOLD ENERGY(T.E) You consider any particular reaction. the molecules of the reactants must necessarily possess certain minimum value of kinetic energy for the collision with other reactant and to from product . this minimum energy that the reactant molecules should possess is known as threshold energy (T.E) ACTIVATION ENERGY (A.E) Do you think all the molecules will possess this particular minimum kinetic energy required to form products? obviously not. if you take the graph of no of molecules vs their kinetic energy graph, you will see that only few molecules possess this minimum kinetic energy. so for other molecules also to participate in the reaction you need to provide certain extra energy to them by some means which is known as the activation energy. (A.E) Now the question arises ,how to calculate the activation energy. suppose in a reaction the average kinetic energy of the molecules of reactant be 10Joules , threshold energy is 50Joules. so what energy should be supplied for all the molecules to react. this is nothing but T.E - Average kinetic energy i.e.,50-10=40Joules. this is what is known as activation energy so ACTIVATION ENERGY (A.E) THRESHOLD ENERGY (T.E) AND AVERAGE KINETIC ENERGY (K.E) ARE RELATED AS A.E=T.E - K.E
How is the energy transfered when the object are in contact?
energy transfer occurs due to random collision of different molecules of the objects with each other,if the objects are of equal energy,there will be no detectable heat transfer,as molecules have same energy,but in between the objects having different heats the energy transfer occurs,due to the random collision of molecules with each other.
High pressure gases?
when the collision between the gas molecules and the container in which the gas exist is very high.....then the pressure of the gas is very high
How does the force of attraction between different molecules help to form solutions?
By the moving of molecules in substance get come in contect with each other.and then as follows to transition state and collision state theory they form solution
Why third order reaction usually not is not possible?
Third order reactions imply reaction between three molecules, which implies collision between three molecules. From a probability standpoint this is much less likely than, say, a second-order reaction, where only two molecules must come together.
What are the characteristics of an ideal gas?
1. Elastic Collision (no loss of kinetic energy when molecules hit) 2. Constant, rapid, and random motion 3. No attraction or repulsion between molecules (electromagnetic forces don't effect the collisions)
