- Wwwm Question One Mole Of Tungsten 6 02 102 Atoms Has A Mass Of 184 G And Its Density Is 19 3g Cm So The Center To 1 (179.86 KiB) Viewed 38 times
- Wwwm Question One Mole Of Tungsten 6 02 102 Atoms Has A Mass Of 184 G And Its Density Is 19 3g Cm So The Center To 2 (260.52 KiB) Viewed 38 times
wwwm Question: One mole of tungsten (6.02×102 atoms) has a mass of 184 g, and its density is 19.3g/cm³,so the center-to-center distance between atoms is 2.51×10-¹0 m m 2.51×10¹0 m. You have a long thin bar of tungsten, 2.5 m long, with a square cross section, 0.15 cm on a side. You hang the rod vertically and attach a 415 kg mass to the bottom, and you observe that the bar becomes 1.26 cm longer. From these measurements, it is possible to determine the stiffness of one interatomic bond in tungsten. (a) What is the spring stiffness of the entire wire, considered as a single macroscopic (large scale), very stiff spring? (b) How many side-by-side atomic chains (long springs) are there in this wire (Figure 4.55)? This is the same as the number of atoms on the bottom surface of the tungsten wire. Note that the cross-sectional area of one tungsten atom is (2.51×10-¹0)² m². (2.51×10¹0)² m² Top of wire Edge of wire
Edge of wire Pertama Top of wire ANTARO Bottom of wire 1 (c) How many interatomic bonds are there in one atomic chain running the length of the wire? (d) What is the stiffness of a single interatomic "spring"