PHYS 1501Q Chapter Notes - Chapter 25: Thermal Conduction, Thermal Expansion, Expansion Joint

• School: UConn
• Department: Physics
• Course: PHYS 1501Q
• Professor: Diego Valente

Document Summary

Average kinetic energy per atom of ideal diatomic gas- Molar heat capacity for ideal diatomic gas - 1 cv mol = n du = 2. Polyatomic molecules have 3 more degree of freedoms due to vibrations. U total = n < k trans per atom + p otential energy of the springs. U total = n < u per atom > = 3. < u per atom > 2 < k trans per atom = 2 2 dv is very small and therefore negligible d = d p dvp. Molar heat capacities of diatomic ideal gases and ideal solids. Degrees of freedom - number of independent modes that can get thermal energy. Monatomic ideal gas - translational in x, y, and z direction (3) Diatomic molecules - translational in x, y, and z direction and rotational about z and y axis (5) 1 cmol = n dq cmol = n. 1 d du = n dt dt (3nkt )