Writer's Block: It's the thought that counts
The joule (symbol J), named for James Prescott Joule, is the derived unit of energy in the International System of Units. It is the energy exerted by the force of one newton acting to move an object through a distance of one metre. In terms of dimensions:
One joule is defined as the amount of work done by a force of one newton moving an object through a distance of one metre.
For a "bulk" (unstructured) system they are the last remaining extensive variables. For an unstructured, homogeneous "bulk" system, there are still various extensive compositional variables { Ni } that G depends on, which specify the composition, the amounts of each chemical substance, expressed as the numbers of molecules present or (dividing by Avogadro's number), the numbers of moles
For the case where only PV work is possible
in which μi is the chemical potential for the i-th component in the system
The expression for dG is especially useful at constant T and P, conditions which are easy to achieve experimentally and which approximates the condition in living creatures
A total of 10 hours was spent in gift planning and buying this year.One joule in everyday life is approximately:
- the energy released as heat by a person at rest, every hundredth of a second.
- the kinetic energy of an adult human moving at a speed of about a handspan every second.
2 hours was spent planning.
Therefore it is easy to see that 1,235,594 Joules were expended on Christmas giving this year. However, my calculations indicate that almost 2 megajoules were received. This sends me into the New Year with a net energy gain.
I hope that each and every one of you has a positive gradient of energy transfer this fine holiday season!!!!!!!
