CHILD DEVELOPMENT PEDAGOGY

GROWTH DEVELOPMENT CHILD

CLASSIFICATION OF ASSESSMENT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When water changes phase, it gains or loses energy. During which of the following types of phase changes do the particles of water gain energy?
A
melting
B
condensation
C
deposition
D
freezing
Explanation: 

Detailed explanation-1: -During melting phase the particles of water gain energy. Thus, option D is correct.

Detailed explanation-2: -Water, like other substances, changes its physical state from solid to liquid to gas as it gains energy. Likewise, water changes its physical state from gas to liquid to solid when it loses heat energy.

Detailed explanation-3: -Changes in phase from solid to liquid (melting) and from liquid to gas (boiling) require energy. When solid ice melts and becomes a liquid, the particles of the substance move farther apart and heat energy is gained.

Detailed explanation-4: -Explanation: As a substance condenses from the gas phase to the liquid phase, it loses energy in the form of heat loss.

Detailed explanation-5: -Thus any transition from a more ordered to a less ordered state (solid to liquid, liquid to gas, or solid to gas) requires an input of energy; it is endothermic. Conversely, any transition from a less ordered to a more ordered state (liquid to solid, gas to liquid, or gas to solid) releases energy; it is exothermic.

There is 1 question to complete.