Sir or ma'am plz tell 7 q of ws all parts
Dear student
Please find your answer below to the asked query
Answer 7
i) On increasing the temperature, solid change into liquid state. The heat energy is absorbed by the molecules and the bond between the solid is broken and it starts melting and the liquid is formed.
ii) Melting point is the temperature at which a solid changes into liquid. The temperature remains constant till all solid melts into liquid. This is because the heat that is supplied for changing a solid state into its liquid state is used for breaking up the particle-particle force of attractions between them. The solid substance thus absorbs heat energy (also called hidden heat or latent heat) without showing any rise in temperature till the entire solid is converted to liquid.
iii) The melting point is an important physical property of a compound. The melting point can be used to identify a substance and as an indication of its purity. (The melting point of solid is defined as the temperature at which the solid exists in equilibrium with its liquid under an external pressure of one atmosphere.)
Regards
Please find your answer below to the asked query
Answer 7
i) On increasing the temperature, solid change into liquid state. The heat energy is absorbed by the molecules and the bond between the solid is broken and it starts melting and the liquid is formed.
ii) Melting point is the temperature at which a solid changes into liquid. The temperature remains constant till all solid melts into liquid. This is because the heat that is supplied for changing a solid state into its liquid state is used for breaking up the particle-particle force of attractions between them. The solid substance thus absorbs heat energy (also called hidden heat or latent heat) without showing any rise in temperature till the entire solid is converted to liquid.
iii) The melting point is an important physical property of a compound. The melting point can be used to identify a substance and as an indication of its purity. (The melting point of solid is defined as the temperature at which the solid exists in equilibrium with its liquid under an external pressure of one atmosphere.)
Regards