Phase Change Materials and Their Applications
Interactive Video
•
Physics
•
11th - 12th Grade
•
Practice Problem
•
Hard
Evelyn Hayes
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of phase change materials in passive conductive cooling?
To decrease the temperature of a system
To change the color of a system
To stabilize temperature by absorbing or releasing latent heat
To increase the temperature of a system
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important for a PCM to have a melting point above the ambient temperature?
To ensure it remains solid at all times
To allow it to melt quickly
To prevent it from liquefying before the panel heats up
To make it more reactive with metals
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a potential drawback of using salt-based PCMs?
They may react with metals causing corrosion
They are too expensive
They are not suitable for thermal storage
They have low thermal conductivity
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do organic PCMs like paraffin compare to inorganic PCMs in terms of thermal conductivity?
Organic PCMs have higher thermal conductivity
Inorganic PCMs have higher thermal conductivity
Both have the same thermal conductivity
Organic PCMs do not conduct heat
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a specific PCM formulation mentioned for controlling temperature in PV panels?
Ca26 H2O Fe3 Cl26 H2O
KCl H2O
NaCl H2O
MgO H2O
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