5. The low-temperature phase diagram for He is SOLID LIQUID LIQUID Fle I He II T (a) Treating liquid "He as an idcal gas of bosons, calculate the temperature at which Bose-Einstein condensation will occur. [Use the molar volume 27 cm.) (b) Why is this different to T-2.17 K? (c) The slope of the liquid-liquid phase boundary is negative in the diagram. Would you expect this behaviour for an ideal gas of bosons? (d) Comment on the slope of the solid-liquid phasc boundary.
5. The low-temperature phase diagram for He is SOLID LIQUID LIQUID Fle I He II T (a) Treating liquid "He as an idcal gas of bosons, calculate the temperature at which Bose-Einstein condensation will occur. [Use the molar volume 27 cm.) (b) Why is this different to T-2.17 K? (c) The slope of the liquid-liquid phase boundary is negative in the diagram. Would you expect this behaviour for an ideal gas of bosons? (d) Comment on the slope of the solid-liquid phasc boundary.
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Transcribed Image Text:5.
The low-temperature phase diagram for He is
SOLID
LIQUID
LIQUID
He I
He II
T,
(a) Treating liquid *He as an idcal gas of bosons, calculate the temperature at which
Bose-Einstein còndensation will occur. [Use the molar volume 27 cm.)
(b) Why is this different to T- 2.17 K?
(c) The slope of the liquid-liquid phasc boundary is negative in the diagram. Would
you expect this behaviour for an ideal gas of bosons?
(d) Comment on the slope of the solid-liquid phasc boundary.
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