2026-09-02 01:03:43: AP Physics 2

physics/Thermodynamics/Kinetic Theory of Temperature and Pressure.md

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+[[Thermodynamics]]
+
+# Summary
+* Gas pressure comes from atoms colliding with the wall and transferring momentum. $P=\frac{F_{\perp}}{A}$
+* Gas pressure exists throughout the gas, not just against the walls.
+* Temperature is average kinetic energy of atoms: $K_{avg}=\frac{3}{2}k_BT$
+* Boltzmann constant: $k_B=1.380649*10^{-23} J*K^{-1}$
+* Root-means-square speed links speed to kinetic energy: $\frac{1}{2}mv_{rms}^2$
+* $K_{avg}=\frac{3}{2}k_BT=\frac{1}{2}mv_{rms}^2$
+* $v_{rms}$ rises with temperature.
+* Maxwell-Boltzmann Distribution shows spread of atomic speeds. Higher temperatures broaden the curve and increases the peak speed.
+* Temperature must be Kelvin to work.