Question

When 1 g of water at ${100}^{\circ }C$ gets converted into steam at the same temperature, the change in volume is approximately

• A. 1 cc
• B. 1000 cc
• C. 1500 cc
• D. 1670 cc

Answer 1

The correct option is D 1670 cc

During change of state mass does not change.

Mass of water = 1gm

So mass of steam is also= 1gm

Density of steam =$0.0006gm/c{m}^3$

Initail volume of water =1$c{m}^3$(Density =$1gm/c{m}^3$) ($1=\frac{1}{V}$) $,v=1c{m}^3$

Later volume of water converted to steam =$\frac{massofsteam}{Densityofsteam}$

$=\frac{1}{0.0006}$

$=\frac{10000}{6}{cm}^3$

$=1670c{m}^3$

Change of volume = $1670c{m}^3$