Adding or removing gas to a constant volume.. What happens to the pressure? Is this a direct or indirect relationship? Adding more gas means higher pressure/direct relationship Adding more gas means less pressure/direct relationship Adding more gas means higher pressure/indirect relationship

## Step 1<br />The problem is based on Boyle's Law, which states that the pressure and volume of a gas have an inverse relationship when the temperature is held constant. This means that if the volume is constant, the pressure of the gas will increase if more gas is added.<br /><br />## Step 2<br />The problem asks us to identify the correct relationship between the pressure and the amount of gas added. The options provided are:<br />- Adding more gas means higher pressure/direct relationship<br />- Adding more gas means less pressure/direct relationship<br />- Adding more gas means higher pressure/indirect relationship<br /><br />## Step 3<br />The first option, "Adding more gas means higher pressure/direct relationship", correctly states that adding more gas will increase the pressure, and this is a direct relationship.<br /><br />## Step 4<br />The second option, "Adding more gas means less pressure/direct relationship", is incorrect because adding more gas will not decrease the pressure.<br /><br />## Step 5<br />The third option, "Adding more gas means higher pressure/indirect relationship", is also incorrect because the relationship between the pressure and the amount of gas added is direct, not indirect.