Multiple Choice
The phase diagram for helium
A) indicates that helium exists as He(g) and He(l) at about 2 K.
B) indicates that helium exists only as a gas.
C) has two triple points.
D) indicates that helium can be liquefied at ordinary pressures.
E) indicates that helium has three phases.
Correct Answer:

Verified
Correct Answer:
Verified
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