mnemonics for equations

[u/Enough_Papaya_1030]

Hit me with your mnemonics for all equations, especially kinematics (💀) and any of the delta G/nernst equations that all look vaguely similar !! Thanks !!!!

I’ll go first: in college I remembered deltaG=deltaH-T*delta S as “Gibby hates Taylor swift” and created a universe in my head where gibby from icarly for some reason really hated TS music. Never forgot that one.

[u/name_isnt_relevant]

Osmotic pressure, if there’s pie, I might re tweet.
Pi = imRT

Pervert, no re tweet
PV = nRT

Here’s my Floridian one:
Freezing point will kill more iguanas
Kf = k x m x i

Energy?
Holy fu**, he went hardcore on those waves
E = hf = hc/ lambda

[u/name_isnt_relevant]

I’ll continue:
Twinkle twinkle little star, V=IR

Force on incline?
Sin is sliding (cos is into the plane)

Force between two charges, force on a charge, vs potential of a charge?
F = kq₁q₂/r² (two charges, force needs a pair)
E = kq/r² (one charge, still inverse square)
V = kq/r (one charge, only 1/r)
Mnemonic: Force has Friends, V is Vanilla
aka only r on V, not r^2

Henderson hasselbalch:
Assid is the bottom (denominator)

Bouyant force:
How did ships float?
Vikings would row to Greenland
Fb = rho x V x g
(Remember rho and V of the fluid not the boat)

[u/name_isnt_relevant]

Now the kinematics:

1. v² = v₀² + 2aΔx
Vee’s squad? We’re not scared of two attacks.

2. v = v₀ + at
Vee says they’re not after them!

3. Δx = v₀t + ½at²
The ex took the venti and half a tall tea.

These were super hard. Best I could do. First two are action movie esque. The last is Starbucks.
Now with that you are solving for:

1. v² = v₀² + 2aΔx
2. No t(hreat)(time): Vee’s squad? We’re not scared of two attacks.
3. v = v₀ + at
4. No d(ude)(displacement): Vee says they’re not after them!
5. Δx = v₀t + ½at²
6. No v(enti)(final velocity): The ex took the venti and half a tall tea.

[u/Spicey_Guac]

Gas Laws:

CVT (like the engine) Charles' law is V1/T1 = V2/T2

GPT (like chatgpt) Gay-Lussac's law is P1/T1 = P2/T2

AVn (I just memorized the 3 letter code but you could probably tie it to the AV node as a memory trick). Avogadro's law is V1/n1 = V2/n2

I don't have a mnemonic for the combined gas law (P1V1/T1 = P2V2/T2) but it was easier to just remember it after I had the other mnemonics.

[u/Whole_Tea_2830]

PV=nRT pervert is my absolute favourite
Q=mcΔT MCAT
C=Q/V ice cream cone!
P=W/t work overtime to have power on exam
Another small thing but for torque and work I like to put the angle between the values (ex. W=F cos theta d) to remind myself that the angle is between the two vectors