What is an everyday example of how temperature alters reaction rates?

Answer 1

the freezing of water into ice cubes water changes it's state of matter faster when it's molecules are in an excited state so the temperature of the water you put in your ice cube tray would affect how quickly you get ice cubes if you use cold water, it takes longer if you use very hot water it freezes faster

note: this is a PHYSICAL CHANGE not a CHEMICAL REACTION

Answer 2

I assume you are talking about rates of reactions? In which case cakes bake faster at higher temperatures as well as many other reactions in cooking food. Then there are reactions in your body. As warmblooded animals we regulate our body temperatures so that the chemical reactions in our cells (eg respiration) happen at a fast enough rate (although too high a temperature denatures enzymes which act as catalysts which is why high body temperatures from fevers can be so dangerous)

Temperature effects the rate of motion in many things. Some good everyday examples would be:

i) When you boil water, you increase the temperature of the water in the pot. This excites the molecules and makes them move faster and faster, eventually moving so fast that they evaporate (turn from water to water vapor).

ii) When you are sick and run a fever, your body temperature has increased. This does several things, but 2 of the main ones are your metabolism increases (performs at a faster rate) and the rate of bacterial/viral (assuming that's why your sick) reproduction decreases, because it is harder for the microorganisms to function at the higher temperature.

Answer 3

1. A common thermometer which contains alcohol or Mercury will expand if the temperature is warm and then revert to its normal size when the temperature cools down. ---- 2.Freezing, melting, evapourating and condensing are all stares of liquid affected by the temperature ---- 3.

Answer 4

Degradation of foods is increased at high temperature.