What are the three main points of collision theory?
There are three important parts to collision theory, that reacting substances must collide, that they must collide with enough energy and that they must collide with the correct orientation.
What are the 4 main factors that affect the rate of reaction?
There are four factors that affect the rate (speed) of a chemical reaction:
- temperature.
- concentration.
- particle size.
- use of a catalyst.
Why does the rate of reaction increase as the pH increases?
Changes in pH also alter the shape of an enzyme’s active site. Each enzyme work bests at a specific pH value. In the graph above, as the pH increases so does the rate of enzyme activity. An optimum activity is reached at the enzyme’s optimum pH, pH 8 in this example.
What is the relation between pH and temperature?
*pH decreases with increase in temperature. But this does not mean that water becomes more acidic at higher temperatures. A solution is considered as acidic if there is an excess of hydrogen ions over hydroxide ions.
Why is pH of water 7?
pH of water is 7 and it is considered as a neutral pH. The term neutral does not mean that water does not contain H+ ions. In fact the term neutral means water contains equal number of H+ and OH- ions. The ion product (the product of ions in water i.e., product of H+ and OH-) of water thus forms the basis of pH scale.
What does pH of 7 mean?
pH is a measure of how acidic/basic water is. The range goes from 0 – 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.
How is pH important in our daily lives?
pH is important because substances such as our stomach acids tend to be at a certain pH in order to work properly. pH is also important because it must be at certain levels in order for living organisms to survive.