Choose the correctly matched pair.a)Boiling Point of Water - 273 Kb)Me...
- Option A: Boiling Point of Water - 273 K
- This is incorrect because the boiling point of water is 373 K, not 273 K. 273 K is the melting point of ice.
- Option B: Melting Point of Ice - 373 K
- This is incorrect because the melting point of ice is 273 K, not 373 K. 373 K is the boiling point of water.
- Option C: Latent Heat of Fusion - Energy required to change 1 kg of solid to liquid
- This is correct. The latent heat of fusion is defined as the amount of heat energy required to change 1 kg of a solid into a liquid at atmospheric pressure at its melting point.
- Option D: Latent Heat of Vaporisation - Temperature at which a liquid starts boiling
- This is incorrect. The latent heat of vaporisation is the amount of heat energy required to change 1 kg of a liquid into a gas at atmospheric pressure at its boiling point. The temperature at which a liquid starts boiling is known as its boiling point.
- Therefore, the correctly matched pair is Option C: (c) Latent Heat of Fusion - Energy required to change 1 kg of solid to liquid.
View all questions of this testChoose the correctly matched pair.a)Boiling Point of Water - 273 Kb)Me...
Latent Heat of Fusion
- The latent heat of fusion is the amount of energy required to change 1 kg of a substance from a solid to a liquid state at its melting point.
- This process occurs without a change in temperature, as the energy is used to break the bonds holding the solid together.
Boiling Point of Water
- The boiling point of water is 100 degrees Celsius or 373 Kelvin.
- At this temperature, water changes from a liquid to a gas phase, known as vaporization.
Melting Point of Ice
- The melting point of ice is 0 degrees Celsius or 273 Kelvin.
- At this temperature, ice changes from a solid to a liquid state.
Latent Heat of Vaporization
- The latent heat of vaporization is the amount of energy required to change 1 kg of a substance from a liquid to a gas state at its boiling point.
- Similar to fusion, this process occurs without a change in temperature, as the energy is used to break the bonds holding the liquid together.