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Ksenya-84 [330]
3 years ago
13

According to Raoult's law, which statement is false?

Chemistry
1 answer:
irina1246 [14]3 years ago
4 0

Answer:

The answer is (A) Ionic solutes dissociate in solution causing an enhancement of all colligative properties.

Explanation:

When a solute dissociates in solution, it causes changes in colligative properties. In several properties an increase is produced (like in boiling point) whereas in others a decrease is produced (like in melting point and vapor pressure). Colligative properties are these that depend of the number of solute particles there are in a solution. Raoult's law is about vapor pressure of a solvent, and it says that the vapor pressure of a solvent decreases when a solute is added. As greater the number of solute particles in solution, lesser the vapor pressure of the solvent. That is due to the fact that solute particles interact with solvent molecules and avoid its escape to gas phase. So, there are less solute particles in gas phase and consequently its vapor pressure is less.

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Marshall determines that a gas has a gage pressure of 276 kPa what's the absolute pressure of this gas
Wittaler [7]
To determine the absolute pressure of this gas, all you need to do is to add the value of atmospheric pressure and the value of gage pressure.

Atmospheric pressure is equivalent to 100 kPa. 
Gage pressure is 276 kPa.

Then, we add both values. 

N = 100 kPa + 276 kPa
N =  376 kPa

The absolute pressure of this gas is 376 kPa.

Hope this helps :)
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4 years ago
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Question 22 of 30
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Answer:

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Explanation:

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Answer:

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