Advertisements
Advertisements
Question
When 1 g of ice at 0 °C melts to form 1 g of water at 0 °C then, is the latent heat absorbed by the ice or given out by it?
Solution
Latent heat is absorbed by the melting ice.
APPEARS IN
RELATED QUESTIONS
What do you understand by the term latent heat?
Explain the following:
The surrounding become pleasantly warm when water in a lake starts freezing in cold countries.
Liquid ammonia is used in ice factory for making ice from water. If water at 20°C is to be converted into 2 kg ice at 0°C, how many grams of ammonia are to be evaporated? (Given: The latent heat of vaporization of ammonia = 341 cal/g)
Water expands on reducing its temperature below ______°C.
What is the name given to the energy absorbed during a phase change?
Give one consequence of the high specific latent heat of fusion of ice.
Define the term ‘specific latent heat of fusion’ of a substance.
Why does evaporation causes cooling and why is water used in hot water bottles?
What observation you will record and how will you determine the specific latent heat of fusion of ice?
When ice is converted into water : constant temperature : : before the water evaporates : _______
Specific latent heat of vaporisation : J/kg : : specific heat : _______
Write scientific reason.
Even if boiling water is constantly heated, its temperature does not rise.
Define specific latent heat capacity
Who introduced the term latent heat?
600 g of copper at 50°C is mixed with lOOOg water at 20°C. Find the final temperature of the mixture. The specific heat capacity of copper is 0.4 Jg-1°C-1 and that of water is 4.2 Jg-1°C-1
Specific latent heat of a substance ______.
The amount of heat energy required to melt a given mass of a substance at its melting point without any rise in its temperature is called as the ______.
