1Which is the dimensional formula of molar mass?
Molar mass works out to [M mol⁻¹].
Heat and thermodynamicsClass 11, Kinetic Theory
Dimensional formula of Molar mass
[M mol-1]
Mass of one mole of a substance. The unit mole is a base quantity, so it stays in the dimension.
How to get the dimensional formula of molar mass
- Start from the definition: molar mass = mass / amount of substance.
- Put in the dimension of each part: [M] / [mol].
- Add the powers of each base quantity: [M mol-1].
Three questions on molar mass
2What is the SI unit of molar mass?
The SI unit of molar mass is the kilogram per mole (kg/mol).
3Do molar mass and latent heat have the same dimensions?
Molar mass is [M mol⁻¹] but latent heat is [L² T⁻²].
Molar mass: quick answers
What is the dimensional formula of molar mass?
The dimensional formula of molar mass is [M mol⁻¹]. It comes from molar mass = mass / amount of substance.
What is the SI unit of molar mass?
The SI unit of molar mass is the kilogram per mole (kg/mol).
Is molar mass dimensionless?
No. Molar mass has the dimensions [M mol⁻¹].