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प्रश्न
What will happen if....? And why?
Rubber is not fitted on a pair of tongs.
उत्तर
Rubber is a poor conductor of heat and electricity. It prevents heat from passing to the hands/handle of the tongs, so protecting us. A pair of tongs is constructed of metal, which conducts heat and electricity. They exhibit both thermal and electrical conduction properties. We shall be unable to lift hot objects with tongs that do not have rubber on them.
संबंधित प्रश्न
What do you observe when :
water is boiled
Does the substance absorb or liberate any heat energy during the change of phase?
The boiling point of alcohol is 78° C. What is this temperature on Kelvin scale ?
What is the name of the process due to which dry ice changes into carbon dioxide gas ?
Draw a labelled diagram of the experimental set-up to study the latent heat of fusion of ice.
Draw the 'states of matter triangle' to show the interconversion of states of matter.
When heat is constantly supplied by a gas burner with small flame to melt ice, then the temperature of ice during melting :
The latent heat of vaporisation of water is :
Explain the term boiling point
What will happen if....? And why?
A bell is made of wood.
