Time

Tem

pera

ture

Cooling Curve

liquid

freezing solid

Time

Tem

pera

ture

Heating Curve

liquid

meltingsolid

Substance Melting PointProcaine 61oC

Flurochloridone 66oCParaffin 72oC

Pentanoic Acid 76oCNaphthalene 79oC

L-Phenylalanine 83oCQuinoline 86oC

Time

Tem

pera

ture

Heating Curve

liquid

meltingsolid

hot

Heat ALWAYS flows from hot objectsto cooler objects

…until the temperatures

are equal.

coolHeat Flow

cools down heats uploses heat gains heat

warm warmequal temp’s

hot

Heat ALWAYS flows from hot objectsto cooler objects

…until the temperatures

are equal.cool

hot hot100oC

Time

Tem

pera

ture

Heating Curve

liquid

meltingsolid

hot

Heat ALWAYS flows from hot objectsto cooler objects

…until the temperatures

are equal.

cool

coolcool50oC

Time

Tem

pera

ture

Cooling Curve

liquid

freezing solid

Tem

pera

ture

solid

liquid

gas

Time

Heating Curve for Water

0o

100o