Heat and Temperature 1

Which one is NOT an assumption of the kinetic particle model?

• All matter is made up of many very small particles (atoms or molecules)

• No kinetic energy is lost or gained overall during collisions between particles

• There are no forces of attraction and repulsion between the particles in a material

• The distances between particles in a gas are large compared with the size of the particles

Which direction does heat flow?

• Heat flows from colder substances to hotter substances.

• Heat flows from hotter substances to colder substances.

Temperature is a measure of

• the average kinetic energy of the particles in the substance.

• the maximum kinetic energy of the particles in the substance.

• the minimum kinetic energy of the particles in the substance.

• the total thermal energy of the substance.

The SI unit for Temperature is

• Fahrenheit

• Celsius

• Kelvin

• Newton.

The kinetic theory applies to all states (phases) of matter. These phases are:

• ice, liquid, gas, plasma

• ice, water, steam

• LCD, plasma, OLED

• solid, liquid, gas, plasma

Convert 35 C to K

• 308 K

• 238 K

• 335 K

• 35 K

The amount of heat required to change 1 kg of a liquid to a gas, at atmospheric pressure, at its boiling point is known as

• Latent heat of vaporisation

• Latent heat of fusion

• Latent heat of fission

• Specific heat

The lowest temperature possible in nature is

In high mountains, water boils at

• a higher temperature than at sea level.

• the same temperature as at sea level.

• a lower temperature than at sea level.

What kind of heat transfer requires no medium?

• conduction.

• 1. convection

• 1. radiation