The mass of one mole (6.022×10²³ particles) of a substance, expressed in grams per mole (g/mol).
Molar mass links the atomic/molecular scale to the macroscopic world. It equals the sum of atomic masses of all atoms in a molecule.
n = mass / molar mass. If you have 36.03 g of water: n = 36.03/18.015 = 2 moles.
The relationship between voltage, current, and resistance in an electrical circuit: V = I × R.
A unit of energy equal to using 1,000 watts of power for one hour.
A rotational force that causes an object to rotate around an axis, measured in newton-meters or foot-pounds.
A unit of heat energy equal to the amount needed to raise one pound of water by one degree Fahrenheit.
A material property that measures how well it conducts heat, expressed in watts per meter-kelvin (W/m·K).
The amount of heat energy required to raise the temperature of one unit mass of a substance by one degree.