Consider two glasses. Glass A has a composition of 100% SiO2. Glass B has a composition of 25% Na2O - 75% SiO2.

Question

(a) Which sample has a shorter average bond length (r)?
(b)Which sample has a higher thermal expansion coefficient?
(c) Which sample has a lower viscosity?

Answer 1

a) glass A
b) glass B
c) glass B

good luck :)

Answer 2

thank u ^^

Answer 3

Anytime ;)

Answer 4

thank u