Models of Matter

Created by: louderthanbombz
Created on: 04-01-18 20:58

What is Boyle's Law? How is it investigated?

Pressure is inversely proportional to volume. Pressure in a reservoir can be increased, forcing oil into a calibrated tube where the Bourdon gauge measures the air pressure in the reservoir. This is compared to volume.

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When doesn't Boyle's Law apply?

Boyle's Law doesn't apply under compression due to Van der Waals forces.

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How is pressure doubled? What is pressure proportional to?

Pressure is doubled by halving volume or increasing the mass. Pressure is proportional to density.

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What's the ideal gas law?

pV=NKT=nRT

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How is Charles' Law investigated?

In a capillary tube the length between the seal and liquid index can be measured at different temperatures to find the temperature for absolute zero.

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What is Charles' Law?

Charles' Law states volume is linearly proportional to temperature for constant pressure. The pressure law states the same for pressure.

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For the simple model of gases, what is the formula for force?

F=mc^2/x.

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For N in a box, what is the formula for force?

F= N/3 * mc^2/x

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As P=F/A, what does PV equal for the kinetic model of gases?

1/3Nmc^2

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What is KE equal to?

3/2 kT

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Why would change in momentum on the wall be less in a collision?

Van der Waals forces of nearby particles.

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In random walks, what is displacement?

Displacement = square root number of paths * mean free path

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In random walks, what is distance?

Distance = N * mean free path

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What are two formulae for dU?

dU=mc * dT = W+Q where W is work done, Q is change in thermal energy, and c is thermal capacity.

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How is specific thermal capacity found?

Connect an immersion heater to a power supply and find the work done by minimising thermal energy lost, which equals dU. Use dU to find c.

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Other cards in this set

Card 2

Front

When doesn't Boyle's Law apply?

Back

Boyle's Law doesn't apply under compression due to Van der Waals forces.

Card 3

Front

How is pressure doubled? What is pressure proportional to?

Back

Card 4

Front

What's the ideal gas law?

Back

Card 5

Front

How is Charles' Law investigated?

Back

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Models of Matter