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Quiz Thermo 2

What is an ideal solution?

The one in which ΔH=0, ΔV=0, Δ=0

The one with only 2 components

The one with liquid and vapour phase

What are the two reference states for ideal solutions?

Ideal gas las, Dalton´s law

Henry´s law, Lewis-Randall rule

Antoine, Clapeyron

Peng Robinson, Clausius-Clapeyron

What is the difference between this two reference states?

Lewis-Randall

A-B Intermolecular forces

Deviation from ideality

A-A Intermolecular forces

Henry´s

A-B Intermolecular forces

Deviation from ideality

A-A Intermolecular forces

Fugacity

A-B Intermolecular forces

Deviation from ideality

A-A Intermolecular forces

What is vapour pressure?

The pressure a vapour would ejerce if it was alone in a closed system.

The pressure felt by the vapour in a closed system, created by an external force

If you decrease the pressure in your system, the boiling temperature of the substance in the system....

Increases

Decreases

Stays the same

Depends on the substance

What is the difference between Clausius-Clapeyron and Clapyeron equations?

Clausius-Clapyeron can only be used in liquids

Clapeyron equation doesn´t work for sulfur compounds

Clapeyron can be used for any phase change, Claussius-Clapeyron can be used only in liquid-vapour boundary

How is it called the point at which with specific conditions of Pressure and Temperature a substance can be found at the three phases (solid, liquid, vapour)

Critical point.

Boiling point

Triple point

Maximium point

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