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If the temperature of a planet is to remain constabt the energy in must equal the energy out?
Jhint5164
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How does accretion heat a planet?
During accretion, any object falling towards a planet will acquire a velocity because of the gravitational attraction from the planet. So, the object will have a kinetic energy due to its motion. During the the collision the kinetic energy is converted to heat energy, and the remain of this heat is actually heating the planet.
What happens to the thermal energy of a substance during a physical change of state?
it will increase or decrease depending on the states. from solid --> liquid or liquid --> gas it is positive and endothermic, and thermal energy is increasing from liquid --> solid or gas --> liquid it is negative and exothermic, and thermal energy is decreasing
How does the temperature affect how fast dry ice turns into a gas?
The higher the temperature the more energy the particles of dry ice have. When they have enough energy they can break away from the solid structure and become gaseous. This process involves a Potential Energy Change NOT a Kinetic Energy Change; Therefore, the temperature will remain constant during this phase change; no matter how much you attempt to "change" the temperature. The Dry Ice may sublime faster as more energy may be "pumped" in as you try to raise the temperature.
When ice starts to melt what happens to the temperature until it completely changes to all water?
During a change of state (phase) there is only a change in the potential energy of the molecules, not the kinetic energy. The energy is used by the molecules to rearrange themselves into positions they have in the liquid state.
Explain why evaporation is a cooling process?
The molecules in any substance do not have exactly the same energy: there are those with more (hot) and those with less (cool). Temperature is a function of the distribution of energy through the molecules: the higher the overall energy of the molecules, the higher the temperature. Evaporation occurs when the higher energy (hot) molecules leave the substance exactly because their energy is above average (they are too hot). This leaves behind lower energy molecules (cooler molecules) which, in turn, means that the overall energy of the substance diminishes. Another way of putting it: leaving behind cooler molecules means the temperature goes down closer to them. Its a heat exchange. like the high energy molecule evaporate and then the low energy remain in the material low energy means cool molecules remain at the surface. its a cooling process in this way.
Why does the temperature of the planet remain in a constant balance?
It doesn't. This is known as "climate change".
What happens to temperature as energy is added to a substance that is changing state?
The temperature remain constant during the phase changing.
Why do boiled peas remain at the same temperature when placed in a vacuum flask for 72hours?
The boiled peas lost their energy, whilst being boiled. Energy gives out heat, yet the peas did not have any more energy, leaving them to remain as the same temperature as they were. Hope this helps :)
How does accretion heat a planet?
During accretion, any object falling towards a planet will acquire a velocity because of the gravitational attraction from the planet. So, the object will have a kinetic energy due to its motion. During the the collision the kinetic energy is converted to heat energy, and the remain of this heat is actually heating the planet.
What happens to temperature when energy is added as heat?
Either the temperature will increase, or it will remain the same. In the latter case, there is a phase change, as when ice melts.
Why does the temperature remain constant in the highlighted portion of the graph even thermal energy is being added?
the extra energy goes into breaking the bonds in the solid
When adding energy in the form of heat the temperature?
The temperature may increase. It may also remain unchanged; in which case the energy is used to change the state of matter (for example, melting a solid, converting it to a liquid).
Why does the temperature remain constant in the highlighted portion of the graph even though thermal energy is being added?
the extra energy goes into breaking the bonds in the solid
What happens to the temperature of boiling water when heat is added to the boiling water?
If you add energy to a boiling liquid, it will just boil faster, but the temperature will remain the same, at the boiling point. All the energy goes into phase change, not heating.
Can a material gain energy and not change temperature?
Yes quite possible. This occurs at the change of state. As water gets changed into steam heat will be supplied but the temperature would remain at the boiling temperature.
What happens to the thermal energy of a substance during a physical change of state?
it will increase or decrease depending on the states. from solid --> liquid or liquid --> gas it is positive and endothermic, and thermal energy is increasing from liquid --> solid or gas --> liquid it is negative and exothermic, and thermal energy is decreasing
How can the temperature of substance remain the same even if the substance is absorbing thermal energy.?
For example, when ice is melting, the absorbed thermal energy is used to change the phase of the substance - a type of potential energy.
