Top topic this week
Back to FAQs
Related FAQs
Frequently Asked Question
Questions asked by users might not always be phrased in the clearest way.
How to calculate surface area of nanoparticles
Accepted Answer
Surface Area of Nanoparticles
The surface area of nanoparticles can be calculated using the following formula:
`SA = 4πr²`
where:
* SA is the surface area in square meters (m²)
* r is the radius of the nanoparticle in meters (m)
Example:
Calculate the surface area of a nanoparticle with a radius of 5 nm.
SA = 4π(5 nm)²
SA = 4π(5 × 10⁻⁹ m)²
SA = 4π(25 × 10⁻¹⁸ m²)
SA = 3.14 × 25 × 10⁻¹⁸ m²
SA = 78.54 × 10⁻¹⁸ m²
Therefore, the surface area of the nanoparticle is 78.54 × 10⁻¹⁸ m².
This formula assumes that the nanoparticle is spherical in shape. If the nanoparticle is not spherical, the surface area will be different. However, this formula provides a good approximation of the surface area for most nanoparticles.
The surface area of nanoparticles can be calculated using the following formula:
`SA = 4πr²`
where:
* SA is the surface area in square meters (m²)
* r is the radius of the nanoparticle in meters (m)
Example:
Calculate the surface area of a nanoparticle with a radius of 5 nm.
SA = 4π(5 nm)²
SA = 4π(5 × 10⁻⁹ m)²
SA = 4π(25 × 10⁻¹⁸ m²)
SA = 3.14 × 25 × 10⁻¹⁸ m²
SA = 78.54 × 10⁻¹⁸ m²
Therefore, the surface area of the nanoparticle is 78.54 × 10⁻¹⁸ m².
This formula assumes that the nanoparticle is spherical in shape. If the nanoparticle is not spherical, the surface area will be different. However, this formula provides a good approximation of the surface area for most nanoparticles.
Articles you might like