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Factors That Affect Gases
Transcript of Factors That Affect Gases
If the temperature decreases, the volume of the gas decreases due to the gas contracting. Temperature and Pressure Volume Quantity Increasing the temperature will cause gas to expand and the pressure will increase
Lowering the temperature will cause the gas to contract and the pressure will decrease
If the temperature is too low or the pressure is too high, the gas can be changed into a solid or a liquid. Boyle's Law At a constant temperature the products of an ideal gas's pressure and volume will always be constant.
If a container contains 100 gas molecules, but is reduced to 50, the pressure will increase. Pressure and Volume Charles's Law If the ideal gas is at a constant pressure, the volume is directly proportional to the absolute temperature
Equation: V1/T1=V2/T2 V=Volume T=Temperature Volume and Temperature Quantity and Pressure What's Happening? As the air was being vacuumed out by the vacuum the quantity of air molecules is lowering. As the number or air molecules lower so does the air pressure. Although the air pressure on the inside of the barrel is lowering, the air pressure on the outside stays constant. The barrel then collapses due to the air pressure difference. Gay Lussac's Law As pressure goes up, so does temperature Quantity and Pressure As the quantity decreases so does the pressure. As the quantity increases so does the pressure. Quantity and Volume The higher the quantity in a smaller volume, will cause the air pressure to be higher.
The lower the quantity in a larger volume, will cause the air pressure to be lower.
The higher the quantity in a larger volume will cause the air pressure to be constant.
The lower the quantity in a smaller volume will cause the air pressure to be lower. What's Happening? As the flask was being heated up, the gas inside it was expanding. As the gas was expanding the gas started occupying more space (volume: the space something occupies), so it went into the water and the water bubbled. As the heat was turned off, the gas started to contract quickly. As the gas contracted it started to occupy less space, and therefore the water starts to occupy the tube, where the gas used to be. What's Happening? The heat cause the air pressure to expand in the bottle. As the flame died out, the temperature dropped, causing the air pressure to drop inside the bottle, creating a mini vacuum. The egg is then pulled in, as the air pressure returns to its normal state.