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Physics Index 3 (front) 2

# Physics Index 3 (front) 2 - Temperature T(K)=TC 273.15...

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Temperature •Å=nm=10 -10 m, 1mole=6.02x10 23 molecules •T(K)=T°C+273.15 •1ev=1.6x -19 J •212°F=100°C (H 2 O boils), 32°F=0°C (H 2 O freezes) •V=U/q (•voltage of cell=70mv) 98.6°F=37°C(body temp.) , 68°F=20°C(room temp.) •p(dipole moment)=qd (q=e) •ΔL=αLΔT (α:H 2 O:70x10 -6 Al:25x10 -6 Pyrex:3x10 -6 ) •E=4ΠKσ/ k =σ/ k ε 0 ( k = dielectric constant or 1/4Πε 0 •ΔA=2αA ΔT ε 0 =8.85E -12 c 2 /N · m 2 , K=8.998x10 9 nm 2 /C 2 ) •ΔV=3αV ΔT=βV ΔT •σ(surface charge density)=Q/A • ΔL=(1/y)σL=αLΔT (Y=bulk modulus, σ=stress=F/A) •E( electric field )= σ/ k ε 0 =Q/ k ε 0 A (↑charge↑electric field) •U(internal E)=(3/2)nRT (monatomic n:#molecules,R:1.38x10 -23 ) •V( potential difference )=Ed=σd/ k ε 0 =Qd/ k ε 0 A U=(5/2)nRT (diatomic n:#molecules,R:1.38x10 -23 ) •1farad(F)=1coulomb/volt, J=Coulomb•Volt, Coulomb=Joule/Volt •1cal=4.186J, 1Calorie=1kcal=1000cal=4.186kJ,1kcal=4186J •C(capacitance)=Q/V= k ε 0 A/d [(C/A)=(Q/V)] Thermodynamics •Cylindrical Geometry=2LΠr k ε 0 /d •ΔU=Q in +W on, ΔU=Q in -W by •W=U=PE(energy stored)=½CV 2 (v=voltage) (Q>0heat added, W>0work is done)

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Physics Index 3 (front) 2 - Temperature T(K)=TC 273.15...

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