Understanding Heating Curves

What does a heating curve illustrate?

• The change from gas to liquid to solid

• The change from solid to liquid to gas

• The change from liquid to solid to gas

• The change from gas to solid to liquid

What is the initial state of matter in the heating curve discussed?

• Gas

• Ice

• Water

• Steam

At what temperature does ice start to melt in the heating curve?

• 50°C

• 0°C

• 25°C

• 100°C

What happens to water at 100°C in the heating curve?

• It condenses

• It boils

• It melts

• It freezes

What is the purpose of segment AB in the heating curve?

• Condensing the steam

• Melting the ice

• Boiling the water

• Warming up the ice

During which segment does pure evaporation occur?

• EF

• DE

• BC

• AB

What is the final state of matter in the heating curve?

• Plasma

• Liquid

• Gas

• Solid

What is the main focus of segment CD in the heating curve?

• Warming up the ice

• Melting the ice

• Warming up the water

• Condensing the steam

What is the significance of the energy given to the ice in segment AB?

• It causes the ice to boil

• It causes the ice to condense

• It causes the ice to vibrate and expand

• It causes the ice to melt

What is the primary outcome of segment EF in the heating curve?

• Formation of plasma

• Formation of water

• Formation of ice

• Formation of steam