Critical Temperature

المؤلف:  GEORGE A. HOADLEY

المصدر:  ESSENTIALS OF PHYSICS

الجزء والصفحة:  P-277

2025-12-27

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Figure 1 is a graphical representation of the relation between the pressure, temperature, and physical state of ammonia*. This shows that ammonia can be reduced from a gas to a liquid by pressures varying from 115 atmospheres at the critical temperature, 130°, to 1 atmosphere when the temperature is reduced to - 33°. It also shows that ammonia can be reduced to a liquid at the ordinary temperature of the air by pressure alone.