Is it possible to have a temperature change without a chemical change?

Answer 1

Yes, a temperature change without a chemical change is possible. A piece of ice can melt into water and then evaporate into water vapor. These changes are all physical changes, and there must be a change in temperature for them to occur.

Answer 2

Change of the state of the matter, release of a gas, a new odor, a new color, formation of a precipitate, a violent reaction with explosion or fire, increase of the temperature, photoluminiscence or phosphorescence, etc. Only one sign is generally insufficient.

Also the chemical analysis of the resulting compounds is very important.

Answer 3

Yes, it is possible to have a temperature change without a chemical change. A temperature change is a physical change that does not involve a change in the chemical composition of the substance. Heating or cooling a substance can alter its temperature without necessarily causing a chemical reaction.

Answer 4

Temperature can change during a chemical reaction or any changes in physical state of matter (as in boiling or melting).

Answer 5

Because large energy changes often accompany the making and breaking of bonds. Energy will be absorbed from or given to the particles of the substances resulting in temperature change.

Answer 6

This is true because many chemical reactions are exothermic - release heat.
An example is the oxidation of the oxide UO2 to the oxide U3O8.

Answer 7

Correct - fractionation of liquid air to give, Nitrogen, oxygen, helium, CO2, Ar etc is not a chemical reaction but results in the production of gases.

Answer 8

Fracture formation.