What would be most helpful to find the normal melting point and normal boiling point on a phase diagram?

Answer 1

A ruler?

On a phase diagram, pressure (the #y# axis) is plotted against temperature (the #x# axis). The pressure scale has units of #"atmospheres"# typically, and the temperature scale naturally has units of #"degrees Kelvin"#. Under conditions of low pressure and high temperature, the substance exists as a gas, and at low temperature and high pressure, the substance exists as a solid.
Now the normal melting and the normal boiling points, by definition are the temperatures at which the solid changes to liquid, and the liquid changes to gas at #"ONE ATMOSPHERE"#. So simply draw a horizontal line on the #y# axis, and note the #x# intercepts of the transitions to give these properties.
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Answer 2

On a phase diagram, the normal melting point and normal boiling point can be found at the point where the solid-liquid equilibrium line intersects with the liquid-vapor equilibrium line, respectively. These points represent the temperatures at which a substance transitions between solid and liquid phases (melting point) and between liquid and vapor phases (boiling point) at standard pressure (1 atmosphere).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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