Chapters 13-17 Flashcards
Temperature
Relative measure of hot or cold
Heat
The energy transfered from 1 object to another because of a temperature difference
Internal Energy
Potential energy of its molecules and Translational, Vibrational, and Rotational Kinetic Energy
Thermal Equilibrium
When there is no more heat transfer between objects
What temp does water freeze
32 F , 0 C , 273 K
Kelvin
C + 273
Fareinheit
1.8(C) + 32
What temp does water boil
212 F , 100 C , 373 K
Ideal Gas Law (pV)
pV = m/M(RT)
Thermal Expansion (Delta L)
Delta L = a L (t2-T1)
Kinetic theory of gases
1.38*10^-23 j/k
1 kcal
4186 J
Specific Heat (Q)
Q = mc (delta T)
Phase Change
Q = mL
3 types of heat transfer
Conduction - touch
Convection - hot air movement
Radiation - through empty space
Thermodynamic Process
A change in a state of matter
Internal energy of gas
Q = delta U + w
Thermal processes
Isobaric- Constant Pressure
Isothermal - Constant Temp
Adiabatic- No heat transfer
2nd Law of Thermodynamics
Heat will not flow spontaneously from a colder body to a warmer body
Entropy
measure of disorder
with every natural process, the total entropy of the universe
increases
heat engine Work
W = Q -Qcold
thermal efficiancy
Q-Qcold/Q
Hookes Law
F = -kx
Frequency
f = 1/2pi(sqrt(k/m))
Period
T = 1/f
Angular Frequency
w = 2pi *f
Wave speed (v)
v = Y/f
Transverse Wave
perpendicular
Longitudinal Wave
parrell
Superposistion
Combined waveform of 2+ interfering waves is given by the sum of the displacement of the individual waves
Constructive Interference
Combined wave form has a greater amplitude than either single wave
