1Which is the dimensional formula of amount of substance?
Amount of substance works out to [mol].
SI base quantitiesClass 11, Units and Measurements
Dimensional formula of Amount of substance
[mol]
The SI base quantity that counts particles in groups of the Avogadro number. It is the number of moles in gas equations.
How to get the dimensional formula of amount of substance
- Amount of substance is one of the seven SI base quantities, so its dimension is written directly: [mol].
Three questions on amount of substance
2What is the SI unit of amount of substance?
The SI unit of amount of substance is the mole (mol).
3Do amount of substance and electric current have the same dimensions?
Amount of substance is [mol] but electric current is [A].
An equation that uses amount of substance
Equation checker
Matching dimensions are necessary, not sufficient. A check cannot see pure numbers such as 1/2 or 2π, so a consistent equation can still be wrong.
Read as
P V = n R TPV[M L2 T-2]=nRT[M L2 T-2]Dimensionally consistentEvery term is [M L2 T-2]
Amount of substance: quick answers
What is the dimensional formula of amount of substance?
The dimensional formula of amount of substance is [mol]. It is one of the seven SI base quantities.
What is the SI unit of amount of substance?
The SI unit of amount of substance is the mole (mol).
Is amount of substance dimensionless?
No. Amount of substance has the dimensions [mol].