metal naturally attracts and holds cold.

I don't know.

plastic absorbs and retains heat.

metal quickly conducts heat away from your skin.

the metal chairs are at a lower temperature than the plastic chairs.

I don't know.

vibrate more so the atoms take up more space.

form bigger molecules so that they take up more space.

contain electrons that move faster so the atom takes up more space.

increase in size so they take up more space.

When the bond breaks no energy will be absorbed or released.

I don't know.

When the bond breaks, energy is released

It is not possible to predict whether energy would be absorbed or released when the bond breaks.

When the bond breaks, energy is absorbed

(A), (B) and (C) are responsible.

Breaking hydrogen bonds gives off energy.

Forming oxygen-hydrogen bonds gives off energy.

Breaking oxygen bonds gives off energy.

I don't know

Both (A) and (B) are responsible.

friction from particles rubbing together.

a reading on a thermometer.

I don't know.

a substance that makes objects feel warm.

the absence of cold.

energy transfer between bodies at different temperatures.

Gibbs Energy, Entropy, Enthalpy & heat

Temperature, Pressure, Volume, heat & work

Internal Energy, Entropy, Enthalpy & Gibbs Energy

Gibbs Energy, Entropy, Enthalpy & work

Internal Energy, Entropy, Enthalpy & heat

Internal Energy, Entropy, Enthalpy & work

The potential energy of the system increased.

Heat was taken in from the surroundings by the system.

Heat was given off to the surroundings by the system.

The potential energy of the system decreased.

the temperature of the system and the surroundings both decrease.

the system liberates energy which is absorbed by the surroundings.

the temperature of the system and the surroundings both increase.

the system absorbs energy from its surroundings.

Entropic

Endothermic

Exothermic

Enthalpic