phase changes lmao
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Last updated 6:07 AM on 11/19/24
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6 Terms
1
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melting
solid → liquid
solid warming (before melting) → q = mCsolidΔT
melting → q = mΔHfusion > 0
for water this is 0 degrees C
endothermic
2
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freezing
liquid → solid
liquid cooling (before freezing) → q = mCwaterΔT
freezing → q = mΔHfusion < 0
for water this is 0 degrees C
exothermic
3
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sublimation
solid → gas
endothermic
4
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deposition
gas → solid
exothermic
5
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evaporation
liquid → gas
liquid warming (before evaporation) → q = mCwaterΔT
evaporation → q = mΔHvap > 0
for water this is 100 degrees C
endothermic
6
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condensation
gas → liquid
steam cooling (before condensation) → q = mCsteamΔT
condensation → → q = mΔHvap < 0
for water this is 100 degrees C
exothermic
Note 
Flashcards (32)