Internal Energy - a measure of the molecular activity of a substance or the sum of the total energies of all molecules in a specific mass. In an ideal gas, internal energy is directly proportional to the temperature of the substance.
TEMPTemperature- A measure of the internal energy that a substance contains. This is the most measured quantity in the atmosphere.Temperature(Abbrev. TEMP)- The temperature is a measure of the internal energy that a substance contains.
The line separating the accumulation area from the ablation areaFirst Law of ThermodynamicsThe law of physics that states that the heat absorbed by a system either raises the internal energy of the system or does work on the environment.
The first law of thermodynamics demonstrated that the heat absorbed by a system may be used by the system to do work or to raise its internal energy.
dissipation - (Also called viscous dissipation.) In thermodynamics, the conversion of kinetic energy into internal energy by work done against the viscous stresses. Sometimes the rate of conversion per unit volume is meant.
Temperature is also related to the amount of internal energy and enthalpy of a system. The higher the temperature of a system, the higher its internal energy and enthalpy are.
In an adiabatic process any change in internal energy (for a system of fixed mass) is solely a consequence of working. For an ideal gas and for most atmospheric systems, compression results in warming, expansion results in cooling.
The law of physics that states that the heat absorbed by a system either raises the internal energy of the system or does work on the environment.
Flanking Line ...
HEAT
A form of energy transferred between two systems by virtue of a difference in temperature. The first law of thermodynamics demonstrated that the heat absorbed by a system may be used by the system to do work or to raise its internal energy.
which is then consistent with the equation of state and with definitions of pressure as the average force of molecular impacts and density as the total mass of molecules in a volume. For an ideal gas, temperature is the ratio of internal energy to ...
 See also: Energy, Temperature, Air, Water, Pressure
  
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