Internal energy is defined as the energy associated with the random, disordered motion of molecules.................
External Energy is defined as the energy associated with placing the atoms in the control volume (flow work), at the boundary (boundary work) or across the system boundary (shaft work)
Cards with a source?
processes which bring about changes on the surface of the earth are called external processes.
the process in the green plants in certain other organisms by which carbohydrates are synthesised from carbondioxide and water using light as an energy source
your a loser buttface
the need for devices to function without an external power source
The sun is the major external source of energy.
solar energy
Solar energy :)
Cells do not choose their source of energy.
source that will run out
The only external source of the earth's energy is the sun. The sun controls the weather which includes hazards such as tornados, hurricanes, and sunburn
connected to an energy source or containing residual or stored energy
connected to an energy source or containing residual or stored energy
The term clean source of energy refers to only primary energy sources as wind or solar energy. Electricity, by definition, is not a primary energy source. It is a secondary energy source that is could be produced by a clean energy source as wind or any renewable primary energy source or produced by fossil energy source as oil, natural gas, or coal.
Exothermic reaction
the sun? Yes, I am pretty sure the Sun is a major source of heat for the Earth
The sun because it gets its enegry from it to make food