10 58:42
Study the heating curve shown.
Which statement is best supported by the information
in the heating curve?
Heating Curve of a Substance
V
T
U
Temperature (Cº)
At segment T-U, the substance changes from a
liquid to a gas and does not change temperature.
At segment T-U, the substance changes from a gas
to a liquid and changes temperature.
O At segment Q-R, the substance releases heat and
increases in temperature.
O At segment Q-R, the substance absorbs heat and
decreases in temperature.
R
S
Heat Added (J)
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Neyt