Chapter 3 - Matter and Energy

Sublimation

________ is a process through which solid changes into a gas directly.

Evaporation

________ occurs when particles absorb sufficient energy in a fluid state to separate and form gas particles.

kelvin

The SI unit, ________, is associated by equation TK= TC + 273 with the Celsius temperature.

Calorie

________ (cal), kilocalorie (kcal), joule (J), and kilojoule are common energy units (kJ)

Fusion thermal

________ means the amount of energy necessary to precisely convert 1 g of solid into liquid.

fusion

A(n) ________ occurs when the solid particles absorb sufficient energy to break down and form a liquid.

chemical property

A(n) ________ shows a substance's ability to switch to another.

specific warmth

Through the multiplication of the mass, temperature change, and ________ the heat is lost or recovered by a substance.

Celsius

The temperature in science is measured in ________ (°C) or kelvins (K)

pure substances

Fixed compositions have ________ or compounds and variable compounds have mixtures.

Celsius scale

On the ________, the point of freeze (0 °C) and the point of boiling (100 °C) are 100- unit water.

g of fluid

The amount of heat required to convert 1 ________ to vapor is the heat of the vaporization.

chemical properties

When a substance with new physical and ________ is formed, a chemical change takes place.