Table of Contents
- 1 Does the temperature change during a phase?
- 2 What happens to the temperature of a substance during a phase change and why?
- 3 Why does the temperature not change during a phase change simple?
- 4 Why is the temperature constant during a phase change?
- 5 During what phase change the temperature of a substance?
- 6 Why does the temperature remain constant during a phase change where does the energy go?
- 7 Why the temperature of all body remains constant at room temperature?
- 8 Why does the temperature remain constant during the change of state Class 9?
Does the temperature change during a phase?
During a phase change energy my be added or subtracted from a system, but the temperature will not change. The temperature will change only when the phase change has completed.
What happens to the temperature of a substance during a phase change and why?
The temperature of a substance does not change during a phase change. One way to recognize a phase change is by measuring the temperature of a substance as it is heated or cooled.
Why does the temperature remain constant during the change of state though there is a constant supply of heat?
It is due to the latent heat as the heat supplied to increase the temperature of the substance is used up to transform the state of matter of the substance hence the temperature stays constant. Hence the temperature remains constant as all the heat is used up and no external heat is released or absorbed.
Why does the temperature not change during a phase change simple?
Since the energy involved in a phase changes is used to break bonds, there is no increase in the kinetic energies of the particles, and therefore no rise in temperature.
Why is the temperature constant during a phase change?
During a change of the state of matter, the supplied energy is not used to increase the kinetic energy of the molecules, but to change the binding energies. Therefore, the temperature remains constant.
What phase changes are endothermic?
Hence, fusion, vaporization, and sublimation are all endothermic phase transitions.
During what phase change the temperature of a substance?
During melting, energy goes exclusively to changing the phase of a substance; it does not go into changing the temperature of a substance. Hence melting is an isothermal process because a substance stays at the same temperature….Phase Transitions: Melting, Boiling, and Subliming.
| Substance (Melting Point) | ΔH fus (kJ/mol) |
|---|---|
| Mercury (−38.8°C) | 2.29 |
Why does the temperature remain constant during a phase change where does the energy go?
During a phase change, the temperature remains constant because the energy supplied via heat is used differently. While not changing states, the heat (energy) goes into changing the kinetic energy of every particle in the body that receives it.
Why does the temperature remain constant during the change of state class 9th?
Answer: The temperature remains constant during the change of state because the heat supplied during the change is used up in overcoming the intermolecular forces between the particles of the state.
Why the temperature of all body remains constant at room temperature?
All bodies radiate as well as absorb radiation at room temperature, but their rate of emission and rate of absorption is the same, hence their temperature remains constant.