Question

A graph is plotted between pressure and volume at different temperatures. On the basis of the graph what changes will you observe in the volume if
(i) the pressure is increased constant temperature.
(ii) the temperature is decreased at constant pressure.

• A. volume increases in both the cases
• B. volume decreases in both the cases
• C. volume increases in (i) and decreases in (ii)
• D. volume decreases in (i) and increases in (ii) .

Answer 1

Answer: (B)

Volume decreases when pressure is increased at constant temperature. When temperature is decreased at constant pressure, the volume decreases.