Advertisements
Advertisements
Question
Specific latent heat of a substance ______.
Options
is directly proportional to the mass
is directly proportional to the change in the temperature
depends on the material
is inversely proportional to the mass
Solution
Specific latent heat of a substance depends on the material.
Explanation:
Typical feature of a material with a given mass in units.
APPEARS IN
RELATED QUESTIONS
State the effect of an increase of impurities on the melting point of ice.
What is the Greenhouse effect?
What do you understand by the term latent heat?
Which has more heat: 1 g ice at 0℃ or 1g water 0℃? Give reason.
Explain the following:
The surrounding become pleasantly warm when water in a lake starts freezing in cold countries.
Explain the following temperature vs time graph.
Define the following terms:
(i) Latent heat,
(ii) Latent heat of fusion of ice.
What is the name given to the energy absorbed during a phase change?
Name two factors on which the heat absorbed or given out by a body depends.
Why does weather become pleasant when it starts freezing in cold countries?
Derive an expression for the amount of heat given out or taken up, when its temperature falls or rises by t°C.
Find the odd one out and give its explanation.
Write the name.
Products obtained when sugar is heated.
Write scientific reason.
The bottom of some steel utensils used for cooking is copper.
For the same mass of ice and ice-cold water, why does ice produce more cooling than ice-cold water?
Specific latent heat L = ______.
2875 J of heat is required to melt 115 g of lead at its melting point. Calculate the specific latent heat capacity of fusion of lead.
Calculate the total amount of heat energy required to melt 200 g of ice at 0°C to water at 100°C. (Specific latent heat of ice = 336 Jg-1, specific heat capacity of water = 4.2 Jg-1 °C-1)
The diagram below shows a cooling curve for a substance:
- State the temperatures at which the substance condenses.
- The temperature range in which the substance is in liquid state.
- Why do we prefer ice to ice-cold water for cooling a drink?