Pressure / Volume Gas relationship Pendle Hill experiment

In summary, the Pendle Hill experiment conducted by Henry Power and Richard Towneley demonstrated a relationship between volume and pressure in gas, which later became known as Boyle's Law. As the experimenters climbed higher up the hill, the volume of gas increased. The question was raised about whether the gas was measured from the bottom of the hill or if the experiment was repeated at the top. It was determined that the change in gas pressure and volume was due to the outside air pressure affecting the mercury in the barometer.
  • #1
A Very G
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I was reading about the Pendle Hill experiment by Henry Power and Richard Towneley showing the relationship between Volume and Pressure in gas that eventually became Boyle's Law.
The higher they got the greater the volume became.
My question is, was the gas measured in the barometer isolated from the bottom of the hill as they climbed or did they repeat the experiment again at the top? If it wasn't repeated why was the gas pressure / volume level affected if it was isolated on the whole trip higher up the hill?

Thanks
Woops if this is more relevant to a chemistry forum
 
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  • #2
Believe I found my answer, it's the air pressure from outside hitting the mercury if they were using a Torricelli type barometer .
Thanks
Feel free to expand or edit if anyone wishes to comment
 

Related to Pressure / Volume Gas relationship Pendle Hill experiment

1. What is the purpose of the Pressure/Volume Gas relationship Pendle Hill experiment?

The purpose of this experiment is to investigate the relationship between the pressure and volume of a gas at a constant temperature. This relationship is known as Boyle's Law, which states that the pressure and volume of a gas are inversely proportional to each other.

2. How is the experiment set up?

The experiment involves using a gas syringe to measure the volume of a gas at different pressures. The gas syringe is connected to a gas sample, which can be compressed or expanded to change its volume. The pressure of the gas is controlled by adding or removing weights on top of the gas sample.

3. What factors affect the results of the experiment?

The results of the experiment can be affected by the temperature of the gas, as Boyle's Law only applies to gases at a constant temperature. The type of gas used can also affect the results, as different gases have different compressibility and behave differently under pressure.

4. How is the relationship between pressure and volume determined?

The relationship between pressure and volume is determined by plotting the pressure and volume values on a graph and observing the trend. According to Boyle's Law, the graph should show an inverse relationship, with pressure decreasing as volume increases.

5. What are some real-world applications of this experiment?

The Pressure/Volume Gas relationship Pendle Hill experiment has many real-world applications, such as in the design of gas storage containers and scuba diving equipment. It is also used in industries such as chemical engineering and meteorology to understand the behavior of gases under different conditions.

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