Internal energy
- Created by: boggleme
- Created on: 03-12-14 16:40
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- Internal energy
- thermal energy is transferred from higher temperatures to lower temperatures
- energy change = mc*change in T
- particles don't all travel at the same speed
- As temperature increases, the average particle speed increases as well as the maximum speed, so the distribution curve becomes more spread out
- Some collisions between particles are head-on, whereas others occur when particles move in the same direction but one is faster. So energy will be transferred between particles and between collisions, the particles will travel at a constant speed.
- Internal energy is the sum of the kinetic and potential energy of the particles within a system
- pV=nRT=Nm*mean square speed/3
- m*mean square speed/2=3nRT/2N and so kinetic energy is proportional to temperature and internal energy
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