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What is the effect on water's chemical and physical properties when the temperature is changed?
- a)Chemical properties of water remain the same but the physical state changes with change in temperature
- b)Chemical properties of water change with change in temperature but physical properties remain the same
- c)There is no effect on chemical or physical properties of water when the temperature is changed
- d)Both chemical and physical properties of water change with change in temperature
Correct answer is option 'A'. Can you explain this answer?
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Chemical properties of water remain the same but the physical state changes with the change in temperature
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What is the effect on water's chemical and physical properties when t...
Effect of temperature on water's chemical and physical properties
When the temperature of water is changed, it has a significant impact on both its chemical and physical properties. The correct answer is option 'A', which states that the chemical properties of water remain the same but the physical state changes with a change in temperature.
Explanation:
1. Chemical properties:
- The chemical properties of a substance refer to how it behaves and interacts with other substances at a molecular level.
- In the case of water, temperature does not affect its chemical composition. Water molecules consist of two hydrogen atoms bonded to one oxygen atom, and this arrangement remains the same regardless of temperature.
- The bonds between hydrogen and oxygen atoms in water molecules are covalent bonds, which are strong and not easily broken or affected by changes in temperature.
- Therefore, the chemical properties of water, such as its ability to form hydrogen bonds, act as a solvent, and participate in chemical reactions, remain constant irrespective of temperature.
2. Physical properties:
- The physical properties of a substance are related to its appearance, state, and behavior under different conditions, including changes in temperature.
- When the temperature of water is altered, it primarily affects its physical state, transitioning between solid (ice), liquid (water), and gas (water vapor) states.
- At lower temperatures, water molecules slow down and come closer, leading to the formation of a regular lattice structure in which water molecules are held in a fixed arrangement, forming ice.
- As the temperature increases, the kinetic energy of water molecules increases, causing them to move more rapidly and break free from the fixed arrangement. This results in the melting of ice and the formation of liquid water.
- Further temperature increase leads to the vaporization of water, where water molecules gain enough energy to overcome intermolecular forces and escape into the gas phase.
- The physical properties of water, such as density, boiling point, melting point, and heat capacity, are directly influenced by temperature changes.
Conclusion:
In summary, while the chemical properties of water remain the same regardless of temperature, the physical properties undergo significant changes. Water's physical state transitions between solid, liquid, and gas as temperature varies, while its chemical composition remains constant.
When the temperature of water is changed, it has a significant impact on both its chemical and physical properties. The correct answer is option 'A', which states that the chemical properties of water remain the same but the physical state changes with a change in temperature.
Explanation:
1. Chemical properties:
- The chemical properties of a substance refer to how it behaves and interacts with other substances at a molecular level.
- In the case of water, temperature does not affect its chemical composition. Water molecules consist of two hydrogen atoms bonded to one oxygen atom, and this arrangement remains the same regardless of temperature.
- The bonds between hydrogen and oxygen atoms in water molecules are covalent bonds, which are strong and not easily broken or affected by changes in temperature.
- Therefore, the chemical properties of water, such as its ability to form hydrogen bonds, act as a solvent, and participate in chemical reactions, remain constant irrespective of temperature.
2. Physical properties:
- The physical properties of a substance are related to its appearance, state, and behavior under different conditions, including changes in temperature.
- When the temperature of water is altered, it primarily affects its physical state, transitioning between solid (ice), liquid (water), and gas (water vapor) states.
- At lower temperatures, water molecules slow down and come closer, leading to the formation of a regular lattice structure in which water molecules are held in a fixed arrangement, forming ice.
- As the temperature increases, the kinetic energy of water molecules increases, causing them to move more rapidly and break free from the fixed arrangement. This results in the melting of ice and the formation of liquid water.
- Further temperature increase leads to the vaporization of water, where water molecules gain enough energy to overcome intermolecular forces and escape into the gas phase.
- The physical properties of water, such as density, boiling point, melting point, and heat capacity, are directly influenced by temperature changes.
Conclusion:
In summary, while the chemical properties of water remain the same regardless of temperature, the physical properties undergo significant changes. Water's physical state transitions between solid, liquid, and gas as temperature varies, while its chemical composition remains constant.
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What is the effect on water's chemical and physical properties when the temperature is changed?a)Chemical properties of water remain the same but the physical state changes with change in temperatureb)Chemical properties of water change with change in temperature but physical properties remain the samec)There is no effect on chemical or physical properties of water when the temperature is changedd)Both chemical and physical properties of water change with change in temperatureCorrect answer is option 'A'. Can you explain this answer?
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What is the effect on water's chemical and physical properties when the temperature is changed?a)Chemical properties of water remain the same but the physical state changes with change in temperatureb)Chemical properties of water change with change in temperature but physical properties remain the samec)There is no effect on chemical or physical properties of water when the temperature is changedd)Both chemical and physical properties of water change with change in temperatureCorrect answer is option 'A'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about What is the effect on water's chemical and physical properties when the temperature is changed?a)Chemical properties of water remain the same but the physical state changes with change in temperatureb)Chemical properties of water change with change in temperature but physical properties remain the samec)There is no effect on chemical or physical properties of water when the temperature is changedd)Both chemical and physical properties of water change with change in temperatureCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the effect on water's chemical and physical properties when the temperature is changed?a)Chemical properties of water remain the same but the physical state changes with change in temperatureb)Chemical properties of water change with change in temperature but physical properties remain the samec)There is no effect on chemical or physical properties of water when the temperature is changedd)Both chemical and physical properties of water change with change in temperatureCorrect answer is option 'A'. Can you explain this answer?.
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