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Describe How The Temperature Changes Within A Phase And During A Phase As Heat Is Added To A Water Sample?
As heat is added to a water sample, the temperature increases within a phase until it reaches the boiling point (100°C at standard atmospheric pressure). During the phase change from liquid to gas, the temperature remains constant at this boiling point, as the added heat energy is used to break intermolecular bonds rather than increase temperature. Once all the water has transitioned to steam, further heat addition will increase the temperature of the steam. Conversely, during cooling, temperature decreases within a phase until reaching the phase change point, where it remains constant until fully transitioning to the next phase.
What describes the change in the mass of water during the freezing process does it stay the same?
During the freezing process, the mass of water remains the same. While the water changes from liquid to solid form, the amount of water does not increase or decrease; it merely undergoes a phase change. Therefore, the total mass of the water before and after freezing is constant.
What happen to the ices molecules during this phase change?
The ice (solid) become water (liquid); the distances between molecules are decreased during the change of phase, also the attraction forces.
What happens to snow molecules during phase change?
During a phase change from solid snow to liquid water, the snow molecules absorb heat energy and gain enough kinetic energy to break their bonds and transition into liquid form. This process is called melting.
When does a substance donot change its temperature even if it is heated?
During a phase change, a substance will remain at a constant temperature while it is being heated. In the case of melting ice, the heat initially goes into separating water molecules from the ice lattice, which is melting. During that time, the heat goes into continued melting of the ice and the temperature remains constant. Once all of the ice is melted, adding additional heat will increase the temperature of the now liquid water.
When does the energy of water increase?
The energy of water can increase if it is heated up, if it is placed under more pressure, if it changes phase, or if it flows faster. In phase change, increase of water's energy happens from: solid phase to liquid phase (melting), from solid phase to vapor phase (sublimation), and from liquid phase to vapor phase (evaporation). Increase in altitude also increases its potential energy.
When water is heated the temp reaches a constant value and forms a plateau on the graph what does the plateau indicate?
It indicates that the temperature does not change during the phase change from liquid to gas until the change is complete. During the phase change, the heat energy added to the water goes into breaking hydrogen bonds between water molecules, so it does not cause an increase in temperature during that time.
Describe How The Temperature Changes Within A Phase And During A Phase As Heat Is Added To A Water Sample?
As heat is added to a water sample, the temperature increases within a phase until it reaches the boiling point (100°C at standard atmospheric pressure). During the phase change from liquid to gas, the temperature remains constant at this boiling point, as the added heat energy is used to break intermolecular bonds rather than increase temperature. Once all the water has transitioned to steam, further heat addition will increase the temperature of the steam. Conversely, during cooling, temperature decreases within a phase until reaching the phase change point, where it remains constant until fully transitioning to the next phase.
What happens during a phase change as heat is added to a water sample?
As heat is added to a water sample during a phase change, all of that heat goes into changing the phase, say from solid ice, to liquid water, and as a consequence, the TEMPERATURE of the sampleDOES NOT CHANGE.
What happens to temperature after a phase change?
During a phase change, the temperature remains constant even though heat is being added to the system. This is because the energy is being used to break intermolecular forces rather than increase the temperature of the substance. Once the phase change is complete, the temperature will start to rise again.
What describes the change in the mass of water during the freezing process does it stay the same?
During the freezing process, the mass of water remains the same. While the water changes from liquid to solid form, the amount of water does not increase or decrease; it merely undergoes a phase change. Therefore, the total mass of the water before and after freezing is constant.
What happen to the ices molecules during this phase change?
The ice (solid) become water (liquid); the distances between molecules are decreased during the change of phase, also the attraction forces.
What type of change occur when water changes from a solid to a liquid?
its a phase change
What happens to snow molecules during phase change?
During a phase change from solid snow to liquid water, the snow molecules absorb heat energy and gain enough kinetic energy to break their bonds and transition into liquid form. This process is called melting.
Is energy required for each phase change?
Yes, energy is required for each phase change. During a phase change, such as melting, vaporization, or sublimation, energy is either absorbed or released in order to break or form intermolecular forces between molecules.
What is a phase change example of?
When ice melts and becomes water, that is a phase change. Same when water boils and becomes steam (a gas) that is also a phase change.
Where do molecules go when ice melts?
The melting of ice is a change of phase, from solid to liquid, a physical processus. The molecules of water (H2O) remain unchanged during the change of phase.
