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should i get the nomad 2c or another mp3 player, (besides high cost hard drive mp3 players)
should i get the nomad 2c or another mp3 player, (besides high cost hard drive mp3 players)
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Answer:
When two liquids are mixed, the vapor pressure of the resulting solution roughly follows Raoult's Law, which states that the vapor pressure of the mixture is a function of the vapor pressures of the individual components and their mole fractions:
Ptot = PAXA + PBXB
where PA and PB are the vapor pressures of the A and B components and XB and XB are the mole fractions.
In reality, only mixtures of two similar liquids follow this law very closely: these are known as ideal solutions. Many solutions show either a higher or lower vapor pressure than expected.
If the vapor pressure of a solution is lower than expected, then the intermolecular bonds between the A and B molecules are stronger than either the A-A or B-B bonds. Since the bonds are stronger, it takes more energy to break them and thus fewer molecules enter the gas phase than in an ideal solution, resulting in a lower vapor pressure. The reverse is also true: if the vapor pressure is higher than expected, then the A-B bonds are weaker than the A-A or B-B bonds. Thus, comparing experimental results to Raoult's law can tell us a lot about the bonding between molecules.
courtesy: http://learn.chem.vt.edu/tutorials/lsproperties/raoultslaw.html
Question: do we have to KNOW the answer, or is googling allowed?
When two liquids are mixed, the vapor pressure of the resulting solution roughly follows Raoult's Law, which states that the vapor pressure of the mixture is a function of the vapor pressures of the individual components and their mole fractions:
Ptot = PAXA + PBXB
where PA and PB are the vapor pressures of the A and B components and XB and XB are the mole fractions.
In reality, only mixtures of two similar liquids follow this law very closely: these are known as ideal solutions. Many solutions show either a higher or lower vapor pressure than expected.
If the vapor pressure of a solution is lower than expected, then the intermolecular bonds between the A and B molecules are stronger than either the A-A or B-B bonds. Since the bonds are stronger, it takes more energy to break them and thus fewer molecules enter the gas phase than in an ideal solution, resulting in a lower vapor pressure. The reverse is also true: if the vapor pressure is higher than expected, then the A-B bonds are weaker than the A-A or B-B bonds. Thus, comparing experimental results to Raoult's law can tell us a lot about the bonding between molecules.
courtesy: http://learn.chem.vt.edu/tutorials/lsproperties/raoultslaw.html
Question: do we have to KNOW the answer, or is googling allowed?
