The pressure of 100cm3 of oxygen at 35oC is 750mmHg. What will be the volume of gas if the pressure is reduced to 100mmHg without changing the temperature?

The pressure of 100cm3 of oxygen at 35oC is 750mmHg. What will be the volume of gas if the pressure is reduced to 100mmHg without changing the temperature?

Answer Details

The gas law that applies to this question is Boyle's Law which states that the pressure and volume of a gas are inversely proportional to each other when the temperature is constant. This means that as the pressure of the oxygen is reduced from 750mmHg to 100mmHg, the volume of the gas will increase by a factor of 750/100 = 7.5. Therefore, the volume of the gas at the new pressure will be 100 cm^3 x 7.5 = 750 cm^3. Thus, the correct answer is 750 cm^3.