First slide

Water and Heavy water

Question

The ratio of densities of hydrogen, deuterium and tritium under similar conditions of temperature and pressure

Easy

A

3 : 2 : 1
B

1 : 2 : 3
C

3 : 6 : 1
D

6 : 2 : 1

Solution

Isotopes H₂ D₂ T₂

Densities 0.09 0.18 0.27

x 100 9:1 18:2 27:3

$\large \therefore$ $\large \begin{array}{*{20}{c}} d&:&{{H_2}}&:&{{D_2}}&:&{{T_2}} \\ {}&{}&1&:&2&:&3 \end{array}$ $\large \because d\propto m$

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