Question

Explain how you were able to determine the new volume without completing the calculations. Pay special attention to how the pressure is changing. Fifty (50.0) mL of helium gas (Hz) is stored at a pressure of 300 kPa. The pressure is changed to 150 kPa. What is the new volume?

Answer 1

Using Boyle's Law, which states that pressure is inversely proportional to volume, we can determine that when the pressure of helium gas is halved from 300 kPa to 150 kPa, the volume will double. Thus, without performing calculations, the new volume will be 100.0 mL.

Step-by-step explanation:

The subject of this question pertains to the relationship between pressure and volume of a gas, which is a fundamental concept in Physics, more specifically in the sub-topic of gas laws. The scenario described in the question can be approached using Boyle's Law, which states that for a given mass of a gas at constant temperature, the pressure of the gas is inversely proportional to its volume. In this case, the pressure of the helium gas is halved from 300 kPa to 150 kPa. According to Boyle's Law, if the pressure is reduced to half its original value, the volume should double, as long as the temperature and the amount of gas remain constant.

Therefore, without completing the calculations, we can determine that the new volume of the helium gas will be twice the initial volume because of the halved pressure. This means the new volume will be 100.0 mL (assuming no change in temperature and the amount of helium gas).