Evaporation energy from the environment, while condensation energy to the environment.

The answers should be absorb and release respectively.

Evaporation is the process where some molecules from the surface of a liquid escapes from the liquid and turns into gas molecules to the air. It is a phase change from liquid to gas. Molecules have to break the bonds between the liquid molecules in order to become gas. Since it involves the breaking of bonds, extra energy is required. Therefore, evaporation absorbs energy form the environment. This also explains why evaporation is a cooling effect, because some liquid molecules absorbs heat and are removed therefore the remaining liquid becomes cooler. Examples are such as sweating, our skin feels cooler when we sweat.

On the other hand, condensation is where gas molecules turns back into liquid molecules. It is a phase change from gas to liquid. Molecules have to loose energy in order to form bonds to become liquid molecules. Therefore, they have to release energy to the environment. This is also why we cover the lid of the pot when cooking, because when the steam condenses on the lid, it heats up the food even faster.

Carbon-14 has a half-life of 5,730 years and most igneous rock is older than that.

The answer to this will be from your lab notes/procedure. it would be best to ask another student who participated in the lab as we do not know what was done, what enzyme or if the temperature is celsius or fahrenheit. if i were to guess though i'd say the rate stopped due to enzyme denturing at high temperature