Interpretation:
Phase diagram of nitrogen has to be sketched.
Concept Introduction:
A plot of pressure against temperature that displays the stable range of a particular phase is known as phase diagram. The phase diagram has 3 regions. Each region represents a particular stable phase like solid, liquid, or gas separated by peripheral lines.
Periphery represents the equilibrium between two phases. Points of intersection at which 3 peripheral lines intersect is known as triple point. All 3 phases exist in equilibrium at triple point.
The vapor pressure at equilibrium for liquid increases as temperature goes up to critical point where vapor pressure curve abruptly ends. Gas and liquid phase is unresolvable above critical temperature.
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