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Which one of the following changes occur when salt is added to water:
- a)Boiling point increases and freezing point decreases.
- b)The boiling point decreases and the freezing point increases
- c)both the boiling point and the freezing point decreases
- d)Both the boiling point and the freezing point increases
Correct answer is option 'A'. Can you explain this answer?
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Which one of the following changes occur when salt is added to water:...
Introduction:
When salt is added to water, it affects the properties of the water. The addition of salt changes the boiling point and freezing point of water. In this case, the correct answer is option 'A', which states that the boiling point increases and the freezing point decreases.
Explanation:
Boiling Point:
When salt is added to water, the boiling point of the water increases. This is because the salt particles disrupt the formation of water vapor bubbles during boiling. The salt particles attract water molecules, making it more difficult for them to escape as vapor. As a result, more heat energy is required to reach the boiling point, and the boiling point of the saltwater solution is higher than that of pure water.
Freezing Point:
When salt is added to water, the freezing point of the water decreases. This is because the presence of salt interferes with the formation of ice crystals. The salt particles disrupt the orderly arrangement of water molecules during freezing, making it more difficult for them to form a solid structure. As a result, the freezing point of the saltwater solution is lower than that of pure water.
Colligative Properties:
The changes in boiling point and freezing point when a solute (in this case, salt) is added to a solvent (water) are examples of colligative properties. Colligative properties depend on the number of solute particles present, rather than the specific nature of the solute. In the case of saltwater, the salt dissociates into positive and negative ions in water, and these ions are responsible for the observed changes in boiling point and freezing point.
Conclusion:
In summary, when salt is added to water, the boiling point of the water increases and the freezing point of the water decreases. These changes occur due to the presence of salt particles, which disrupt the normal behavior of water molecules during boiling and freezing. These changes are examples of colligative properties, which depend on the number of solute particles present.
When salt is added to water, it affects the properties of the water. The addition of salt changes the boiling point and freezing point of water. In this case, the correct answer is option 'A', which states that the boiling point increases and the freezing point decreases.
Explanation:
Boiling Point:
When salt is added to water, the boiling point of the water increases. This is because the salt particles disrupt the formation of water vapor bubbles during boiling. The salt particles attract water molecules, making it more difficult for them to escape as vapor. As a result, more heat energy is required to reach the boiling point, and the boiling point of the saltwater solution is higher than that of pure water.
Freezing Point:
When salt is added to water, the freezing point of the water decreases. This is because the presence of salt interferes with the formation of ice crystals. The salt particles disrupt the orderly arrangement of water molecules during freezing, making it more difficult for them to form a solid structure. As a result, the freezing point of the saltwater solution is lower than that of pure water.
Colligative Properties:
The changes in boiling point and freezing point when a solute (in this case, salt) is added to a solvent (water) are examples of colligative properties. Colligative properties depend on the number of solute particles present, rather than the specific nature of the solute. In the case of saltwater, the salt dissociates into positive and negative ions in water, and these ions are responsible for the observed changes in boiling point and freezing point.
Conclusion:
In summary, when salt is added to water, the boiling point of the water increases and the freezing point of the water decreases. These changes occur due to the presence of salt particles, which disrupt the normal behavior of water molecules during boiling and freezing. These changes are examples of colligative properties, which depend on the number of solute particles present.
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Community Answer
Which one of the following changes occur when salt is added to water:...
When the salt is mixed in water then the boiling point of the water increases. By mixing Impurities, freezing point is generally reduced.
Hence, the correct option is (a).
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Which one of the following changes occur when salt is added to water:a)Boiling point increases and freezing point decreases.b)The boiling point decreases and the freezing point increasesc)both the boiling point and the freezing point decreasesd)Both the boiling point and the freezing point increasesCorrect answer is option 'A'. Can you explain this answer?
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