Question

A mass of neon occupies 200 cm at 100 C. Find its volume at 0 C, the pressure remaining constant.

Answer 1

• Volume=V1=200cm^3
• Temperature=T1=100°C
• Temperature=T2=0°C
• Volume=V2=?

Here pressure(p) is constant.

Using charles law

$\boxed{\sf \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}}$

$\\ \sf\longmapsto \dfrac{200}{100}=\dfrac{V_2}{0}$

$\\ \sf\longmapsto 2=\dfrac{V_2}{0}$

$\\ \sf\longmapsto V_2=2\times 0$

$\\ \sf\longmapsto V_2=0cm^3$

Answer 2

The answer is 146.3 cm³

Explanation:

V1= 200 cm³

T1 = (273+100) = 373 k

T2=(273+0) =273 k

V2 = ?

ACCORDING TO CHARLIE'S LAW :

V1 / V2 = T1 / T2

or, 200 / V2 = 373 / 273

or, V2 =. (200×273 )÷ 373

or , V2 = 146. 3

ANSWER : 146.3 cm³