Which Of The Following Statement Is Correct? (1)The Three States Of Matter (solid. Liquid And Gas) Are Inter Convertible By Changing The Conditions Of Temperature And Volume. (2) Sugar Solution And Air Are The Examples Of Heterogeneous Mixture (3)
Introduction
Chemistry is a fascinating subject that deals with the study of the composition, properties, and reactions of matter. In this article, we will delve into the world of states of matter and mixtures, exploring the correct statements and examples that illustrate these concepts.
The Three States of Matter
The three states of matter - solid, liquid, and gas - are fundamental concepts in chemistry. These states are characterized by the arrangement and movement of particles, which are influenced by temperature and volume.
- Solids: In solids, particles are closely packed and have a fixed position in space. The particles vibrate slightly, but they do not change their position. Examples of solids include rocks, metals, and ice.
- Liquids: In liquids, particles are close together but are free to move past each other. The particles have some freedom of movement, and they can flow. Examples of liquids include water, oil, and juice.
- Gases: In gases, particles are widely spaced and are free to move in any direction. The particles have a lot of freedom of movement, and they can expand to fill their container. Examples of gases include air, helium, and steam.
Inter-convertibility of States of Matter
The first statement claims that the three states of matter are inter-convertible by changing the conditions of temperature and volume. This statement is TRUE. By altering the temperature and volume of a substance, we can change its state of matter.
- Melting: When a solid is heated, its particles gain energy and start moving more freely. As the temperature increases, the particles gain enough energy to break free from their fixed positions, and the solid turns into a liquid.
- Boiling: When a liquid is heated, its particles gain energy and start moving even more freely. As the temperature increases, the particles gain enough energy to escape the surface tension of the liquid, and the liquid turns into a gas.
- Condensation: When a gas is cooled, its particles lose energy and start moving more slowly. As the temperature decreases, the particles lose enough energy to come together and form droplets, and the gas turns into a liquid.
- Freezing: When a liquid is cooled, its particles lose energy and start moving more slowly. As the temperature decreases, the particles lose enough energy to come together and form a crystal lattice, and the liquid turns into a solid.
Examples of Heterogeneous Mixtures
The second statement claims that sugar solution and air are examples of heterogeneous mixtures. This statement is FALSE. Sugar solution is an example of a homogeneous mixture, while air is an example of a heterogeneous mixture.
- Homogeneous Mixtures: A homogeneous mixture is a mixture in which the components are uniformly distributed throughout the mixture. Examples of homogeneous mixtures include sugar solution, saltwater, and air.
- Heterogeneous Mixtures: A heterogeneous mixture is a mixture in which the components are not uniformly distributed throughout the mixture. Examples of heterogeneous mixtures include sand and water, oil and water, and air (which contains different gases such as nitrogen, oxygen, and carbon dioxide).
Conclusion
In conclusion, the three states of matter - solid, liquid, and gas - are inter-convertible by changing the conditions of temperature and volume. Sugar solution is an example of a homogeneous mixture, while air is an example of a heterogeneous mixture. Understanding these concepts is essential in chemistry, as they form the basis of many chemical reactions and processes.
Key Takeaways
- The three states of matter - solid, liquid, and gas - are inter-convertible by changing the conditions of temperature and volume.
- Sugar solution is an example of a homogeneous mixture, while air is an example of a heterogeneous mixture.
- Understanding the states of matter and mixtures is essential in chemistry, as they form the basis of many chemical reactions and processes.
Frequently Asked Questions
- Q: What are the three states of matter? A: The three states of matter are solid, liquid, and gas.
- Q: Can the three states of matter be inter-converted? A: Yes, the three states of matter can be inter-converted by changing the conditions of temperature and volume.
- Q: What is a homogeneous mixture? A: A homogeneous mixture is a mixture in which the components are uniformly distributed throughout the mixture.
- Q: What is a heterogeneous mixture?
A: A heterogeneous mixture is a mixture in which the components are not uniformly distributed throughout the mixture.
Q&A: States of Matter
Q: What are the three states of matter?
A: The three states of matter are solid, liquid, and gas.
Q: What is the difference between a solid, liquid, and gas?
A: In a solid, particles are closely packed and have a fixed position in space. In a liquid, particles are close together but are free to move past each other. In a gas, particles are widely spaced and are free to move in any direction.
Q: Can the three states of matter be inter-converted?
A: Yes, the three states of matter can be inter-converted by changing the conditions of temperature and volume.
Q: What is the process of changing a solid to a liquid called?
A: The process of changing a solid to a liquid is called melting.
Q: What is the process of changing a liquid to a gas called?
A: The process of changing a liquid to a gas is called boiling.
Q: What is the process of changing a gas to a liquid called?
A: The process of changing a gas to a liquid is called condensation.
Q: What is the process of changing a liquid to a solid called?
A: The process of changing a liquid to a solid is called freezing.
Q&A: Mixtures
Q: What is a mixture?
A: A mixture is a physical combination of two or more substances.
Q: What is a homogeneous mixture?
A: A homogeneous mixture is a mixture in which the components are uniformly distributed throughout the mixture.
Q: What is a heterogeneous mixture?
A: A heterogeneous mixture is a mixture in which the components are not uniformly distributed throughout the mixture.
Q: What is an example of a homogeneous mixture?
A: An example of a homogeneous mixture is sugar solution.
Q: What is an example of a heterogeneous mixture?
A: An example of a heterogeneous mixture is sand and water.
Q: Can a homogeneous mixture be separated into its components?
A: No, a homogeneous mixture cannot be separated into its components by physical means.
Q: Can a heterogeneous mixture be separated into its components?
A: Yes, a heterogeneous mixture can be separated into its components by physical means, such as filtration or decantation.
Q&A: Additional Topics
Q: What is the difference between a mixture and a compound?
A: A mixture is a physical combination of two or more substances, while a compound is a chemical combination of two or more elements.
Q: What is an example of a compound?
A: An example of a compound is water (H2O).
Q: What is an example of a mixture?
A: An example of a mixture is air, which is a mixture of different gases.
Q: Can a mixture be converted into a compound?
A: No, a mixture cannot be converted into a compound by physical means.
Q: Can a compound be converted into a mixture?
A: Yes, a compound can be converted into a mixture by physical means, such as heating or cooling.
Conclusion
In conclusion, the states of matter and mixtures are fundamental concepts in chemistry. Understanding these concepts is essential in chemistry, as they form the basis of many chemical reactions and processes. We hope that this Q&A article has provided you with a better understanding of these concepts.