How Do You Determine Atomic Distance from Density and Molar Mass?

  • Thread starter Thread starter Azzy42
  • Start date Start date
  • Tags Tags
    Modulus
AI Thread Summary
To determine atomic distance from density and molar mass, first calculate the number of atoms in a mole using Avogadro's number. The density of lead (11.4 g/cm³) and the molar mass (207 g) allow for finding the volume occupied by one mole of lead. This volume can then be divided by the number of atoms to find the volume per atom, which can be related to atomic diameter. Young's modulus (1.6 x 10^10 N/m²) can be used alongside the calculated atomic distance to approximate the spring constant. Understanding these relationships simplifies the modeling of atomic interactions as springs.
Azzy42
Messages
2
Reaction score
0
Heres my problem.
Youngs modulus for lead: 1.6exp10 N/m^2. Density of Lead: 11,4g/cm^3.
Mass of one mole lead: 207g
Model the interactions as if they were connected by springs.
Determine distance between lead atoms and approx spring constant.

Easy enough Y= K/d But what is bugging me is d. dia of atom
How do you determine d from density and the mass of one mole?
And how do u relate it to the distance between atoms?
It is keeping me up.
Probably very easy but just not seeing it.

PS: don't know if we use different notation is SA
 
Physics news on Phys.org
If you assume that each atom of lead is a point mass (has mass but zero volume), then the problem is greatly simplified.
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »
Thread 'A cylinder connected to a hanged mass'

Thread 'A cylinder connected to a hanged mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Calculating Speed of Sound in Nickel using Atomic Properties
Replies
5
Views
6K
Feynman Lectures exercises problem 1.9
Replies
3
Views
4K
How Does Young's Modulus Relate to Spring Constants in Motion Equations?
Replies
3
Views
3K
How Do You Calculate the Mass Concentration of N2O in Air?
Replies
4
Views
4K
How Does Spinning a Mass Affect Atomic Spacing in a Wire?
Replies
1
Views
1K
Stiffness of a single interatomic spring PLEASE HELP
Replies
8
Views
6K
How Do You Calculate the Effective Stiffness of an Iron Bar?
Replies
1
Views
5K
What is the Atomic Force Constant in a Metal Bar Under Tension?
Replies
1
Views
3K
Stiffness of a single interatomic spring ?
Replies
3
Views
20K
How do we find the molar mass of dry air?
Replies
11
Views
3K

Hot Threads

Recent Insights

Back
Top