DMT50263 TOPIC 3 RECAP

Law of conservation of energy states that energy is following, EXCEPT?

• can transform from one form to another

• can be created

• cannot be created

• can transferred from one system to another

Energy due to the motion of molecules or vibration

of the substances in the system is _______________

• Elastic Energy

• Potential Energy

• Heat Energy

• Internal Energy

△U = Q - ____

• w

• P

• V

• PV

The total heat content of a system, equal to the internal energy of the system plus

the product of pressure and volume is ______________

• Internal Energy

• Thermal Diffusivity

• Enthalpy

• Transient Heat

H = ____ + PV

• U

• T

• M

• K

When the system absorbs heat, enthalpy changes is positive when the system releases heat,

enthalpy changes is negative

• True

• False

Specific heat capacity is defined as the

• amount of heat content used or released in a system

• amount of energy needed to raise the temperature

  of 1 Kelvin

• movement of heat is caused by the temperature difference

This is _______________specific heat equation.

• Siebel's

• Choi and Okos

This is _________ specific heat equation

• Siebel's

• Choi and Okos

Under certain conditions, solid, liquid and gaseous phase may

co-exist

• True

• False