Advertisements
Advertisements
प्रश्न
What change in heat energy occurs when lead at its melting point
solidifies without change in the temperature?
विकल्प
Latent heat is emitted.
Latent heat is absorbed.
Specific heat capacity is emitted.
Specific heat capacity is absorbed.
Both latent heat and specific heat are emitted.
उत्तर
Latent heat is emitted.
APPEARS IN
संबंधित प्रश्न
A copper vessel of mass 100 g contains 150 g of water at 50°C. How much ice is needed to cool it to 5°C?
Given: Specific heat capacity of copper = 0.4 Jg-1 °C-1
The Specific heat capacity of water = 4.2 Jg-1 °C-1
The Specific latent heat of fusion ice = 336 Jg-1
What do you mean by the following statement?
The heat capacity of a body is 50 JK-1?
Name three fossil fuels that emit carbon dioxide into the atmosphere ?
State, with reason, which of the two, boiling water or steam both at 100°C will produce more severe burns.
Water falls from a height of 50 m. Calculate the rise in the temperature of water when it strikes the bottom.
(g = 10 ms-2; Specific heat capacity of water = 4200 J / kg°C)
Explain how heat capacity of a solid can be determined by the method of mixture.
The cold object the hot object enclosed in one box of heat-resistant material.
- What changes will occur in the two objects when temperature flows from those objects?
- Which principle can show that the energy exchange takes place between two objects only when kept in isolated system?
Which of the substances P, Q, or R has the lowest specific heat? The temperature v/s time graph is shown ______.
Specific heat capacity C = ______.
