1.) Charles\' Law states that the relationship between volume and temperature of

Question

1.) Charles' Law states that the relationship between volume and temperature of an ideal gas is direct. What would you expect a graph of volume (dependent) vs. temperature (independent) to look like?
2.) How would you go about calculating the constant for a graph of the type in question 1?

3.)Explain what two variables should be held constant for a Charles' Law type of experiment.

4.) In the first part of the actual lab, you will be looking at the pressure relationship with volume. Explain why you would need to start the experiment over if the syringe becomes disconnected from the gas pressure sensor. In other words, in the experiment you are actually doing in lab, what variables need to be held constant?

5.)In the second part of the actual lab, you will be looking at the pressure relationship with temperature. Explain why you would need to start the experiment over if the stopper in the flask is left open to the atmosphere during the entire experiment. In other words, in the experiment you are actually doing in lab, what variables need to be held constant?

Explanation / Answer

1)

linear graph with a certain slope (constant slope)

2)

This is the slope calculation, m = dy/dx

y-axis is now Volume and x-axis is Temperature ; therefore

K = dV/dT

3)

amount of substance, i.e. mol

Pressure

4)

If the syringe disconnects, pressure will not remain constant, that is, the experiment will be a failure since P must be constant

5)

Volume must remain constant, and fixed, therefore, if it opens, the voluem will change and will not remain constnat

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