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When two objects are touching each other and are at the same temperature there is no net change in either object's what?

When two objects at the same temperature are touching each other, there is no net change in either object's thermal energy. This means that there is no overall transfer of heat energy between the objects as they are in thermal equilibrium.


What property of a substance does the change in temperature indicate?

Change in temperature directly indicates a change in the mean amount of kinetic energy possessed by each particle. It also indirectly indicates a possible change in state, and a possible change in chemical properties too (chemical reactions often involve energy transfer in the form of temperature change).


What is the temperature of a starfish?

Since the starfish is a cold-blooded animal, its body temperature is the same temperature as the surrounding water it lives in. Each starfish's temperature varies.


What is the body temperature of a starfish?

Since the starfish is a cold-blooded animal, its body temperature is the same temperature as the surrounding water it lives in. Each starfish's temperature varies.


What is shape factor in heat transfer?

A shape factor is a way for engineers to estimate the heat transfer in an idealized situation, usually between two temperature potentials. The temperature potentials don't change in time, so it is assumed steady state. There is no internal variation in each temperature potential. This is useful when the problem is a second order partial differential equation, and the engineer is under a time constraint.


What happens when two objects of different temperatures are put next to each other?

Heat will transfer from the object with higher temperature to the object with lower temperature until they reach thermal equilibrium, where they are at the same temperature. This process is known as heat transfer by conduction.


What do you mean by upper critical temperature of metal?

The upper critical temperature of a metal is the temperature at which the metal undergoes a phase transformation from a solid to a liquid. This temperature is specific to each metal and varies depending on its composition.


When two objects are touching each other and are the same temperature there is no net change in either object what?

When two objects are touching each other and are the same temperature, heat energy will not flow from one object to the other. This is because there is no temperature difference to drive the transfer of heat. The objects will reach thermal equilibrium, where the average kinetic energy of their particles is the same.


What is a heat or electrical transfer by contact?

Heat or electrical transfer by contact refers to the transfer of heat or electricity between two objects that are in direct physical contact with each other. This transfer occurs through the vibration of particles within the materials, leading to a flow of energy from a higher temperature or voltage to a lower temperature or voltage.


Liquid alcohol will change to vapor when its temperature reaches the what?

Liquid alcohol will change to vapor when its temperature reaches its boiling temperature. When alcohol reaches its boiling temperature, each molecule of alcohol has enough energy to separate from each other, so each molecule can move freely. The boiling point of liquid alcohol is 351K or 78C


What direction does thermal energy flow?

Thermal Energy always transfer from the higher temperature to lower temperature until both bodies reach the same temperature or in thermal equilibrium with each other.


How can a matter change from solid state to liquid state and reverse the process?

At a unique temperature, called the "freezing point", for each pure substance at a constant pressure, a solid form of the substance can change from solid to liquid phase by absorbing heat energy from its environment without raising the temperature of the substance, and, at the same temperature and pressure, a liquid phase of the same substance, can solidify without changing its temperature if it can transfer heat energy to the external environment.