Physics Exam 1 Flashcards
What is the zeroth law of thermodynamics?
How do you convert celsuis to fahrenheit?
What is the equation for linear expansion relating temperature change and length change of a material?
What is the equation relating change in volume and change in temperature for a material?
Beta= 3 alpha
What is the equation relating heat, heat capacity, and temperature of an object?
What is the equation relating heat, heat capacity, mass, and temperature?
What is the heat of transformation and the equation for the heat of transformation?
Heat of vaporization= LV (liquid <-> gas)
Heat of fusion= LF (solid <-> liquid)
What is the equation for work of a closed system involving a gas?
What is the first law of thermodynamics?
What is an adiabatic process?
An adiabatic process is one that occurs so rapidly or occurs in a system that is so well insulated that no transfer of energy as heat occurs between the system and its environment
What is the change in internal energy of a constant-volume process?
What is the change in internal energy of a system undergoing free expansion?
What is the ideal gas law?
What is the Boltzman constant? (k)
What is the equation for work in an ideal, isothermal process (where T is constant)
This equation is derived from taking the integral of the definition of work using pv=nrt to replace p
What is the value of work in a constant volume process?
W=0
What is the work in a process where the pressure is held constant?
What is the equation for the root mean square speed of a gas?
What is the equation for the kinetic energy of a gas?
What is the equation for the mean free path of a molecule?
What is the equation for average speed of a molecule?
What is the equation for the most probable speed for a molecule?
What is the equation for heat of a gas with constant volume?
What is the molar specific heat at constant volume for monoatomic,diatomic, and polyatomic molecules?
(3/2)R monoatomic
(5/2)R diatomic
3R polyatomic
What is the equation for the change in internal energy of an ideal gas?
What is the molar specific heat at constant pressure? (Cp)
Cp= Cv+R
This Cp is greater than the molar specific heat at constant volume CV, because energy must now be supplied not only to raise the temperature of the gas but also for the gas to do work
If an irreversible process occurs in a closed system, what can we say about the entropy?
What is the equation for the change in entropy?
What is the equation for entropy that is derived from the equations for change in internal energy?
What is the second law of thermodynamics?
What is the equation for the force due to entropy?
What is the equation for work of a carnot engine?
What is the equation for efficiency of a carnot engine?
Can also be written as
1-(Low Temp/High Temp)
What is the equation for efficiency of a refrigerator?
Also can be written as
Low Temperature/ (High Temp- Low Temp)
What is true in a reversible isothermal expansion?
Q=W
so change in entropy equals W/T
