Internal Energy & Energy Transfers (AQA GCSE Physics): Flashcards
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What is latent heat?
What is latent heat?
Energy required to change the state of a substance
Does temperature change during a change of state?
Does temperature change during a change of state?
No change in temperature
Internal energy during heating changes of state
Internal energy during heating changes of state
Increases
Why temperature stays constant during melting/boiling
Why temperature stays constant during melting/boiling
Energy breaks bonds between particles, not increasing temp
Internal energy during cooling changes of state
Internal energy during cooling changes of state
Decreases
Energy during condensation/freezing
Energy during condensation/freezing
Energy is released
Why energy is released during condensation/freezing
Why energy is released during condensation/freezing
To make bonds between particles
What latent heat does NOT change
What latent heat does NOT change
Temperature
What latent heat changes
What latent heat changes
State only