Question

Of the following which is a low expands one?
1. Sodalime
2.quartz
3.vycor
4.borosilicate

Answer 1

Answer:

2.quartz

Explanation:

Answer 2

Answer:

Quartz

Explanation:

Coefficient ox expansion denotes the ratio of the increase of area, length or the volume of a body per degree rise in temperature to its area, length or the volume. Thus -

Coefficient of expansion of quartz = 5.5x10^-7

Coefficient of expansion of borosilicate = 32.5x10^-7

Coefficient of expansion of vycor = 7.5x10^-7

Coefficient of expansion of sodalime = 89x10^-7

Therefore, lower the value of coefficient of expansion,lower is its expansion.

Thus, out of the given four options quartz expands the lowest.