Answer Happy

1) Using a pencil and a ruler, plot the following data on the graph below. Label the axes of the graph, and add an appropriate title at the top of the graph. Predict a value for Absolute Zero by extrapolating the graph to the x-axis. 200 150 100 50 0 -300 CHARLES' LAW PRE-LAB QUESTIONS Temperature of Air (°C) (x-axis) 100 20 4 -200 Based upon this graph, Absolute Zero = -100 °C Volume of Air (ml) (y-axis) 140 110 105 0 100
2) Based upon the graph you plotted in question 1, how does a decrease in temperature affect the volume of the gas (the pressure and amount of gas is held constant)? 3) Charles' Law allows the prediction of gas volumes at different temperatures. What would the volume of a gas be at 38.3°C if it started at a volume of 45.7mL and a temperature of -58.5 °C? Remember that temperatures must be in Kelvin when performing Gas Law calculations. 4) Using the raw data from question 3 as an example, explain why temperature must always be converted to Kelvin when using gas law equations. gas 5) Charles' Law applies when gases are behaving as Ideal Gases. Can you assume that the ideally during this experiment? Explain. will behave.
Part 1 (t₁, V₁) Part 2 (tz, V₂) Part 3 (t3, V3) CHARLES' LAW EXPERIMENTAL DATA AND RESULTS Temperature (°C) Volume of Water (ml) Absolute Zero: 24°C 8°C Temperature of Boiling water: Barometric Pressure: 100°C 1 °C 23ml 31ml torr Prediction of Absolute Zero as determined from the graph: 70mL Volume of Air (mL) (Total Volume of flask - Volume of water) 102mL 94ml Total Volume of Flask: 140mL