The heat of fusion is the amount of energy required to change 1 unit mass of a solid to a liquid at constant temperature.
During the change of state, the molecules of a substance absorb energy to overcome the strong intermolecular force of attraction between them. Hence the heat energy which we supply is absorbed by them for this purpose. So change in temperature is not observed.
no
No. By definition, the constant does not change with temperature for a given cooling system. The constant "represents" all the particular characteristics of the cooling system, except for the time and temperature variables. If temperature influences the system characteristics, the vessel's dimensions, heat capacity, or heat transfer properties, for example, all of these effects will be completely accounted for by the single constant.
No. Latent heat of vaporization is defined as the energy required to VAPORIZE 1 kilogram of a liquid completely at its boiling point. Latent heat of sublimation is the energy required to SUBLIME 1 kilogram of a solid completely into a gas at constant temperature. They're different. Note that the temperatures should be constant during the processes.
"Acceleration" means change of velocity. If velocity is constant, then acceleration is zero.
newton's cooling constant is defined as the ratio b/w change in temperature and difference in temperature of hot body and temperature of surrounding
None - heat is evolved, not required.
Temperature of melting iceis a constant property: it does not change during melting (stays 0oC, this is even one of the the defined value of the Celsius temperature scale)(for any other melting solid the same is valid at each melting point temperature)
because energy is required to break the intermolecular forces in the molecule
Temperature is constant during a phase change.
A change of phase takes place at a constant temperature.
Temperature
The temperature remain constant.
Temperature remains constant during the change in phase (physical state).
No, the gas constant, or any constant, is constant meaning it doesn't change.
During the change of state, the molecules of a substance absorb energy to overcome the strong intermolecular force of attraction between them. Hence the heat energy which we supply is absorbed by them for this purpose. So change in temperature is not observed.
No, since acceleration is defined as a change in velocity. If there is no change, there is no acceleration.