CHEM/PHYS Equations

kinematics equaitons

Vf=Vo+at

Vf²=Vo²+2ax

x= t(v+v)/2

x=Vot+1/2at²

what is the kinetic energy

1/2mv²

potential energu

U=mgh

Force equation

F=ma

F=-kx

work

Fdcosθ

torque

Fdsinθ

centripetal acceleration

A=mv²/r

doppler

f’=(v±o/v+-s)f

wavelength

λ=2L/n for open

λ=4L/n for closed

capacitance

C=Q/v

force between two electrical charges

F=(kqq)/r²

circuit equation

V=IR

power equations

P=IV

P=I²R

P=V²/R

capacitance of parallel plate

C=eA/d

electrical resistance of capacitor

R=pL/A

potential energy of a capacitor

U=1/2CV²

voltage of electric field

V=Ed

electric potential of point charge

V=q/r

V=kq/r

refraction equation

n1sinθ1=n2sinθ2

thin lens

1/f=1/o+1/i

magnification

m=-i/o

RIP meaning

real inverted positive

NUV meaning

negative, upright, virtual

energy equations

E=hf

E=hc/λ

KE= hf-W

h value

6.63×10^-34

c vlaue

speed of light

3.00×10^8 m/s

wave speed

c=fλ

gas/pressure work

W=PVhea

heat transfer

q=mc (deta t)

gibbs free energy

g=h-ts

standard gibbs

G=-RTlnk

electrochemistry non equilibrium work

G=-nFEF

F constant

96,485 C/mol

linear thermal expansion

L=αL(delta t)

ideal gas law

PV=NRT

STP

0 C, 1atm, 22.4 L

SATP

25 C and 1 atm

gas law at constant temp

P1V1=P2V2

pressure equation

P=F/A

bernoiulls

P1+1/2pv²+pgh=P2+1/2pv²+pgh

bouyant

F=pvg

flow rate

q=VA

continuity equation

A1V1=A2V2

pouisellis

Q=(pi*P*r^4)/(8nL)

specific gravity

pgravity/pwater

object sinks

SG>1

object floats

SG<1

hydrostatic and absolute pressure

P=Po+pgh

joules

kg*m²/s²

newtons

kg*m/s²

work units

kg*m²/s³

ka equation

ka=x²/Mi

Mi= initial concentration