# Effect of temperature on chemical weath

It is one of the most advanced studies in the field of physical chemistry. The information about these factors affecting the rate of a chemical reaction help engineers and scientists to economically scale up the reactions to industrial scale in various industries. As we raise the temperature, the rate of reaction increases. Temperature has a large effect on the rate of reaction. You can also monitor the rate of reaction between the sodium thiosulfate and hydrochloric acid by using a light sensor.

The solution gets more cloudy as the reaction carries on, so you can record the rate at which light is blocked by the precipitate of sulfur.

We can then convert these readings into amounts of sulfur formed to get a graph like the one in Fig. The line levels off at the same height at both temperatures. How can you tell from the graph that the same amount of products are produced at both temperatures?

The lines on the graph are both curves. Both lines level off at the same value on the vertical axis. Explaining the effect of temperature So why does temperature have such a big effect on the rate of reactions?

There are two factors at work here: As the temperature is raised, the particles gain energy and move around more quickly. This means that there will be more chance of reactant particles colliding.

There will be more collisions between particles in any given time, and more frequent collisions result in an increased rate of reaction. The increased energy of the particles means that a greater proportion of the collisions in the reacting mixture actually produce a reaction.

More collisions happen with enough energy to exceed the activation energy of the reaction. Remember that the activation energy of a reaction is the minimum amount of energy needed before a reaction can take place. The second factor accounts for most of the effect that temperature has on the rate of reaction.

Effect of temperature on the rate of reaction. Which two of these statements are valid reasons why temperature increases the rate of reaction?

Increasing the temperature lowers the activation energy of a reaction. Increasing the temperature results in a higher rate of collision between particles. Increasing temperature produces more effective collisions with enough energy for a reaction to occur. Summary As we increase the temperature, we increase the rate of reaction.

The main reason for this is that a higher proportion of the collisions at the higher temperature will have sufficient energy to result in a reaction. In other words, more particles collide with an energy greater than the activation energy for the reaction.A. o. smith instruction manual copper boilers for hydronic heating and hot water supply series, series (36 pages).

Reaction rates are roughly doubled when the temperature increases by 10 degrees Kelvin. This means the rate can be quadrupled if the temperature is raised by 20 degrees Kelvin. 