Advertisements
Advertisements
Question
What is meant by saying that the latent heat of vaporisation of water is 22.5 × 105 J/kg ?
Solution
The latent heat of vaporisation of water is means that 22.5 × 105 Joules of heat is required to convert 1 kg of water into steam at its boiling point at the same temperature.
APPEARS IN
RELATED QUESTIONS
Give two reasons to justify water at room temperature is a liquid.
What do you mean by the change of state? Write the flow chart showing the complete cycle of change of state.
The boiling point of water is 100° C. Express this in SI units (Kelvin scale).
Fill in the following blank with suitable words :
The state of matter called ........................ makes a fluorescent tube (or neon sign bulb) to glow.
What is sublimation ? Name two substances (other than ammonium chloride) which undergo sublimation.
Define the following terms: Diffusion
Write whether the following statement is true or false:
All solids, on heating, first change to the liquid and then to the gaseous state always
A substance which can change its state
Explain the term vaporization
What is it made from? Why?
The sheets used for roofing.