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The ratio of number of moles of species A to the total number of moles of the mixture is known as
- a)Mole fraction
- b)Mass fraction
- c)Partial pressure
- d)Mass density
Correct answer is option 'A'. Can you explain this answer?
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The ratio of number of moles of species A to the total number of moles...
Explanation: It is defined as n a/n.
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The ratio of number of moles of species A to the total number of moles...
Ratio of Moles of Species A to Total Moles of Mixture
The ratio of the number of moles of species A to the total number of moles of the mixture is known as the mole fraction. This concept is widely used in chemistry and chemical engineering to express the composition of mixtures.
Mole Fraction
The mole fraction, denoted by the symbol "X," is defined as the ratio of the number of moles of a particular component to the total number of moles of all components in the mixture. It is a dimensionless quantity and is expressed as a decimal or a fraction.
Mathematically, the mole fraction of species A can be calculated using the following formula:
Mole fraction of A (X_A) = Moles of A / Total Moles of Mixture
The mole fraction can range from 0 to 1, where 0 represents the absence of species A in the mixture, and 1 represents the pure presence of species A in the mixture.
Significance of Mole Fraction
The mole fraction is an essential parameter in various aspects of chemistry and chemical engineering. Some of its significant applications include:
1. Composition of Mixtures: The mole fraction provides a quantitative measure of the composition of a mixture. It helps in determining the relative amounts of different components present in a mixture.
2. Ideal Gas Laws: In the study of ideal gases, the mole fraction is used to calculate the partial pressure of a gas component in a mixture. The partial pressure is directly proportional to the mole fraction of the gas component.
3. Raoult's Law: Raoult's law is a fundamental principle in the study of solutions. It states that the vapor pressure of a component in an ideal solution is directly proportional to its mole fraction in the solution.
4. Colligative Properties: Colligative properties, such as boiling point elevation and freezing point depression, depend on the mole fraction of solute particles in a solution. The mole fraction is used to calculate the concentration of solute particles.
Conclusion
The ratio of the number of moles of species A to the total number of moles of the mixture is known as the mole fraction. It is a crucial parameter for expressing the composition of mixtures and is widely used in chemistry and chemical engineering. The mole fraction provides valuable information about the relative amounts of different components in a mixture and plays a significant role in various thermodynamic calculations and the study of solution properties.
The ratio of the number of moles of species A to the total number of moles of the mixture is known as the mole fraction. This concept is widely used in chemistry and chemical engineering to express the composition of mixtures.
Mole Fraction
The mole fraction, denoted by the symbol "X," is defined as the ratio of the number of moles of a particular component to the total number of moles of all components in the mixture. It is a dimensionless quantity and is expressed as a decimal or a fraction.
Mathematically, the mole fraction of species A can be calculated using the following formula:
Mole fraction of A (X_A) = Moles of A / Total Moles of Mixture
The mole fraction can range from 0 to 1, where 0 represents the absence of species A in the mixture, and 1 represents the pure presence of species A in the mixture.
Significance of Mole Fraction
The mole fraction is an essential parameter in various aspects of chemistry and chemical engineering. Some of its significant applications include:
1. Composition of Mixtures: The mole fraction provides a quantitative measure of the composition of a mixture. It helps in determining the relative amounts of different components present in a mixture.
2. Ideal Gas Laws: In the study of ideal gases, the mole fraction is used to calculate the partial pressure of a gas component in a mixture. The partial pressure is directly proportional to the mole fraction of the gas component.
3. Raoult's Law: Raoult's law is a fundamental principle in the study of solutions. It states that the vapor pressure of a component in an ideal solution is directly proportional to its mole fraction in the solution.
4. Colligative Properties: Colligative properties, such as boiling point elevation and freezing point depression, depend on the mole fraction of solute particles in a solution. The mole fraction is used to calculate the concentration of solute particles.
Conclusion
The ratio of the number of moles of species A to the total number of moles of the mixture is known as the mole fraction. It is a crucial parameter for expressing the composition of mixtures and is widely used in chemistry and chemical engineering. The mole fraction provides valuable information about the relative amounts of different components in a mixture and plays a significant role in various thermodynamic calculations and the study of solution properties.
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The ratio of number of moles of species A to the total number of moles of the mixture is known asa)Mole fractionb)Mass fractionc)Partial pressured)Mass densityCorrect answer is option 'A'. Can you explain this answer?
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