Quizz 3

The internal energy is related to the microscopic motion of the particles

• True

• False

The internal energy decresases when the temperature increases

• True

• False

The internal energy is represented by

• U

• Ei

• Eu

The unit of the internal energy is :

• Joules (J)

• Watts (W)

The specific internal energy is represented by

• u

• U

• Eu

The specific internal energy is the internal energy per unit of volume

• True

• False

The unit of the specific internal energy is

• J/Kg

• J/m³

• J/s

The specific heat is

• the amount of heat required to increase the temperautre of 1Kg of material by 1°C

• the amount of heat required to increase the temperautre of 1m³ of material by 1°C

• the amount of heat required to increase the temperautre of 10Kg of material by 20°C

The specific internal energy can be calculated by:

• 
• 
• 

In a solid, the heat flux through a surface is:

• The amount of heat passing through the surface during 1s

• The amount of heat stored in the surface

• The amount on heat passing through the surface