- #1
tomtraxler
- 10
- 0
If temperature is defined as the average kinetic energy of molecules in a fluid (or gas), then why isn't the temperature of a fluid increased when that fluid is set in motion? Or is it?
For example, if a stationary fluid is set into motion, do the molecules not have additional kinetic energy, like taking a cup of water and moving it or by making it swirl with a spoon? The energy relative to each other molecule might be the same, but relative to some external standard, it has increased.
For example, if a stationary fluid is set into motion, do the molecules not have additional kinetic energy, like taking a cup of water and moving it or by making it swirl with a spoon? The energy relative to each other molecule might be the same, but relative to some external standard, it has increased.