Advertisements
Advertisements
Question
When water is cooled to a temperature x, it gets converted into ice at temperature x by a process called P. And when ice at temperature x is warmed, it gets reconverted into water at the same temperature x in a process called Q.
- What is the value of temperature x in Kelvin ?
- What is the process P known as ?
- What is the name of energy released during process P ?
- What is the process Q known as ?
- What is the name of energy absorbed during process Q ?
Solution
- 273K
- The name of the process is freezing.
- Latent heat of freezing
- Melting
- Latent heat of fusion
APPEARS IN
RELATED QUESTIONS
How do you say that the process of digestion is a chemical change ?
Why does steam cause more severe burns than boiling water ?
Define 'boiling point' of a substance ? What is the boiling point of water ?
Define the term 'latent heat of fusion' of a solid. How much is the latent heat of fusion of ice ?
There are four substances W, X, Y and Z. The substance W is a dark violet solid having diatomic molecules. A solution of W in alcohol is used as a common antiseptic C. The substance X is a white solid which is usually recovered from sea water on a large scale. The substance Y is a white solid which is insoluble in water and used in the form of small balls for the safe storage of woollen clothes. The substance Z is a yet another white solid which is used in making commonly used dry cells.
- Name (i) W (ii) X (iii) Y and (iv) Z.
- Out of W, X, Y and Z, which substance/substances can undergo sublimation ?
- Which substance is organic in nature ?
- What is the name of substance C ?
- Which substance belongs to the halogen family ?
Define the following terms: Sublimation
Fill in the blanks:
The molecules are at a greater distance in ______ compared to liquids.
Write whether the following statement is true or false:
There is no difference between evaporation and boiling
State which of the following statement is true or false. If false write the correct statement.
Solids are highly compressible and rigid.
Complete the statement by filling the blank with the correct word given below.
Conversion of vapour [or gas] into a liquid is termed ____________.