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Physical Properties of Water Video Lecture - Chemistry Class 11 - NEET

195 videos|336 docs|190 tests

FAQs on Physical Properties of Water Video Lecture - Chemistry Class 11 - NEET

1. What are the physical properties of water?
Ans. Water has several physical properties, including being a liquid at room temperature, having a high boiling point and melting point, being transparent, and having a high specific heat capacity.
2. Why is water a liquid at room temperature?
Ans. Water is a liquid at room temperature due to its unique molecular structure. It is composed of two hydrogen atoms bonded to one oxygen atom, creating a bent shape. This bent shape allows water molecules to form hydrogen bonds with each other, which gives water its liquid state.
3. What is the boiling point and melting point of water?
Ans. The boiling point of water is 100 degrees Celsius (212 degrees Fahrenheit) at sea level, while the melting point is 0 degrees Celsius (32 degrees Fahrenheit). These temperatures can vary depending on factors such as altitude and the presence of impurities.
4. Why is water transparent?
Ans. Water is transparent because it does not absorb or reflect much light within the visible spectrum. The molecules in water are closely packed together, allowing light to pass through without scattering or being absorbed significantly, resulting in its transparency.
5. What is specific heat capacity and why is water's specific heat capacity high?
Ans. Specific heat capacity refers to the amount of heat energy required to raise the temperature of a substance by a certain amount. Water has a high specific heat capacity, meaning it can absorb and store a large amount of heat energy before its temperature rises. This is due to the hydrogen bonds between water molecules, which require a significant amount of energy to break. Water's high specific heat capacity makes it useful for regulating temperature, both in the environment and within living organisms.
195 videos|336 docs|190 tests
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