Physics
Constants
Biochem
Gen Chem
Units
100

This equation describes centripetal force.

What is Fc = mv^2/r ?

100

This is the value of atmospheric pressure, described using four different units.

What is

-1.01 x 10^5 Pa 

-1 atm

-760 mmHg

-760 torr

?

100

This equation describes the efficiency of an enzyme.

Catalytic efficiency = Kcat/Km

100

This equation is used to calculate the spontanaeity of a reaction.

What is the calculation for gibbs free energy? 

ΔG = ΔH - TΔS

100

This is the definition of a watt.

What is J/sec?

200

These four equations describe an object moving with constant acceleration in terms of time, distance, and final/initial velocity.

What are kinematic equations?

  • V = V0+ at

  • x = V0t + ½at^2

  • V^2= V0^2+ 2ax

  • x = avg velocity x t

200

This number is critical for determining the energy of a photon. (Hint: this number represents "h" in the equation E = hf.)

What is planck's constant? 6.7 × 10^-34 m2 kg / s

200

This equation is used to predict the rate of product formation in enzymatic reactions.

What is the Michaelis Menten equation? V = Vmax[S]/Km+[S]

200

This the first law of thermodynamics. (+ associated equation).

What is the idea that energy can neither be created nor destroyed?

=change in internal energy

=heat added

=work done by the system

200

This is the definition of an ampere.

What is Coulomb's/second?

300

This equation relates the pressure, height and velocity of a fluid.

What is Bernoulli's equation? P1 + 1/2pv1^2 + pgh1 = P2 + 12/pv2^2 + pgh2 

300

This value is the electric force constant, or the electrostatic constant, with units.

What is 9 ×10^9 N⋅m^2⋅C^−2? 

Used in the equation: Fe= kq1q2/r^2

300

This equation is used to determine cell potential under non-standard conditions.

What is the nernst equation ?


300

What is the equation to determine the pH of a buffer based on the pKa of the acid?

What is pH = pKa + log ([A-]/[HA]) ?


(A- = conjugate base, HA = acid)

300

This is the definition of a Newton.

What is kg m^s/ s^2? 

Or: what is Nm ?

400
This is the potential energy in a capacitor.

What is U = 1/2 C V^2 ?

400

This is the speed of light!

What is 3x10^8 m/s?

400

This can be used to calculate specific rotation of an optically active compound.


400

This is the equation for osmotic pressure.

π = iMRT

pi = osmotic pressure

i = van't Hoff's factor

M = molar concentration of solution (mol/L)

R = ideal gas constant

T = temperature (in Kelvin)

400

This is the definition of a Pascal.

What is N/m^2 ?

500

This is pouiseuille's equation.

What is ?


Delta p    =    pressure difference between the two ends

nu    =    dynamic viscosity

L    =    length of pipe

Q    =    volumetric flow rate

\pi    =    pi

R    =    pipe radius

500

This is the ideal gas constant (R).

What is 8.3 or .08? 

8.3 J/mol K

0.08 L atm mol/K

500

(Surprise physics) This equation describes mechanical advantage.

What is


?


=mechanical advantage
=output force
=input force


500

This is the Arrhenius equation (a formula for the temperature dependence of reaction rates).


=rate constant

=pre-exponential factor

=activation energy (in the same units as R*T)

=universal gas constant

=absolute temperature (in Kelvin)

Ea tells us that a lower activation energy leads to a higher k (faster reaction)

1/T tells us that higher temperatures yield higher k (faster reaction)

A and R are constants!

500

These are the units for capacitance and resistance.

What is Farad = C/V ?

What is Ohm = V/A ?