Question

If 300 ml of a gas at 27? C is cooled to 7? C at constant pressure, then its final volume will be :

• A. 540 ml
• B. 350 ml
• C. 280 ml
• D. 135 ml

Answer 1

Answer: (C)

According to Charle's law at constant pressure $\frac{V_1}{T_1}=\frac{V_2}{T_2}$ Or $V_2=\frac{V_1\times T_2}{T_1}$ Or $V_2=\frac{300\times 280}{300}$ $=280ml$