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Phase Changes and Latent Heat

Authored by Thomas Pickett

Chemistry

9th - 11th Grade

NGSS covered

Used 36+ times

Phase Changes and Latent Heat
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

It's the amount of heat required to change the state (gas,liquid, solid) of a unit of material

Latent Heat

Specific Heat

Temperature

Q

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

This formula is used to find the amount of heat (energy) neccesary when there's a phase change

Q= (h)(ΔT)

Q=(m)(L)

Q=(m)(c)(ΔT)

Q=(k)(A)(dT)

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Latent heat is

the heat absorbed or released at a boiling process during a change of phase

the heat absorbed or released at a constant temperature during a change of phase

the heat absorbed or released at a constant temperature during a change of phase of 1 kg object

the heat absorbed or released by an object to increase or decrease its temperature by 1 degree Celcius

4.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

The heat absorbed by melting a solid is known as

latent heat of fusion

latent heat of solid

latent heat of liquid

latent heat of vaporisation

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

specific latent heat of vaporisation is

the amount of heat required to change 1 kg of the substance from the solid to liquid phase without change in temperature

the amount of heat required to change 1 kg of the substance from the liquid to gaseous phase without change in temperature

the amount of heat required to change the temperature 1 kg of the substance by 1 degree Celcius

Tags

NGSS.HS-PS3-4

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Water molecules have the greatest kinetic energy in

Ice at 0 ⁰C

Water at 90 ⁰C

Water at 373 K

Steam at 150 ⁰C

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The graph shows the cooling curve of a substance. At which stages the specific latent heat released?

AB and CD

BC and DE

AB and EF

BC and CD

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-1

NGSS.HS-PS3-2

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