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I am not quite sure what you mean. If heat is exchanged, there is usually a temperature change.
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∙ 10y ago
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Is energy only transferred by heating if there is no temperature difference?
Heat can only be transferred if there IS a temperature difference. (If two objects have the same temperature, nothing will happen).
Can Heat can be transferred by only by radiation?
Heat can be transferred by three different ways. They are Conduction, Convection and Radiation.
Why can heat not be transferred in this way in an iron rod?
heat is transferred only from high energetic concentration to low energetic concentration. therefore heat cant be transferred in any usual way.
How is energy transferred by solids liquids gases and vacuum?
Heat energy is transferred by conduction, convection and radiation. In a vacuum, heat energy can only be transferred by radiation.
Why is latent heat called hidden heat?
The latent heat of fusion refers to the heat of fusion in reactions that involve a solid that forms a liquid, or vice versa. The latent heat of vaporization is the latent heat involving a liquid that forms a gas or vice versa.Latent means hidden or unseen. In this context, the 'latent' heat is the heat that is not detectable as a temperature change in the substance. Rather than adding kinetic energy (which is detectable as a temperature change) some heat is required to break the bonds of the solid structure.
Is energy only transferred by heating if there is no temperature difference?
Heat can only be transferred if there IS a temperature difference. (If two objects have the same temperature, nothing will happen).
Can Heat can be transferred by only by radiation?
Heat can be transferred by three different ways. They are Conduction, Convection and Radiation.
Why can heat not be transferred in this way in an iron rod?
heat is transferred only from high energetic concentration to low energetic concentration. therefore heat cant be transferred in any usual way.
How is energy transferred by solids liquids gases and vacuum?
Heat energy is transferred by conduction, convection and radiation. In a vacuum, heat energy can only be transferred by radiation.
What happens when heat is added to a system?
When heat is added to a system, the temperature increases, unless there is a phase change taking place. In that case, temperature remains the same, and the only observable difference is the phase change.
How does a greater change in temperature relate to a higher evaporation rate?
Yes, but only if the change is an increase; more heat = faster evaporation.
Why does your temperature gauge rise and lower only when you have the heat on?
Why does your temperature gauge rise and lower only when you have the heat on?
Why is latent heat called hidden heat?
The latent heat of fusion refers to the heat of fusion in reactions that involve a solid that forms a liquid, or vice versa. The latent heat of vaporization is the latent heat involving a liquid that forms a gas or vice versa.Latent means hidden or unseen. In this context, the 'latent' heat is the heat that is not detectable as a temperature change in the substance. Rather than adding kinetic energy (which is detectable as a temperature change) some heat is required to break the bonds of the solid structure.
Is it possible for an air mass to change in temperature if no heat is added or subtracted?
Not only possible but a certainty that it will change in temperature.
Explain why the temperature of Wax remains constant during solidification?
it's because it releases the latent heat of fusion. Latent heat means energy is given out when a substance changes from liquid to solid without a change in temperature. and the transfer of energy doesnt change the KE of the particles, so the temperature remains unchanged. lanten heat gives rise to the change in PE of the particles during the change of state only
How does heat change a material and can it change back?
Heat raises the temperature of the material. If the change is small then there is only a physical change and allowing the material to return to its original temperature will return it to its original physical state.However, too much heat can result in chemical changes which are usually not reversible. For example, if you heat a piece of plastic enough it will crumple into a charred mass. That charred mass will not return to the pristine plastic.
Equation to calculate heat gained or lost by an object?
c = Q / (m(change in temperature)) Where, c = specific heat capacity Q = amount of heat needed m = mass Change in temperature = initial temperature - temperature(after) Take note that this equation cannot be used in calculating the change in state - melting and boiling Because temperature do not change. We therefore use: Q = lv x m Where, lv = latent heat of vapourisation (for boiling/condensation ONLY) m = mass Q = lf x m Where, lf = latent heat of fusion (for melting/freezing ONLY)
