Ideal Gas

Ideal Gas - 13 12 11 10 5.0 15 10 20 PV ×10 N m 2 P ×10...

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Unformatted text preview: 13 12 11 10 5.0 15 10 20 PV / ×10 N m 2 P / ×10 Pa 6 Data analysis question At high pressures, a real gas does not behave as an ideal gas. For a certain range of pressures, it is suggested that the relation between the pressure P and volume V of one mole of the gas at constant temperature is given by the equation PV = A + BP where A and B are constants. In an experiment to measure the deviation of nitrogen gas from ideal gas behaviour, 1 mole of nitrogen gas was compressed at a constant temperature of 150 K. The volume V of the gas was measured for different values of the pressure P . A graph of the product PV of pressure and volume was plotted against the pressure P and is shown below. (Error bars showing the uncertainties in measurements are not shown). (a) Draw a line of best fit for the data points. (1) (b) Use the graph to determine the values of the constants A and B in the equation PV = A + BP. Constant A ………………………………................................................................. ………………………………................................................................. ………………………………................................................................. Constant B ………………………………................................................................. ………………………………................................................................. ………………………………................................................................. ………………………………................................................................. ………………………………................................................................. (5) (c) State the value of the constant B for an ideal gas. ..................................................................................................................................... (1) (d) The equation PV = A + BP is valid for pressures up to 6.0 × 10 7 Pa. (i) Determine the value of PV for nitrogen gas at a pressure of 6.0 × 10 7 Pa. ........................................................................................................................... ........................................................................................................................... ........................................................................................................................... (2) (ii) Calculate the difference between the value of PV for an ideal gas and nitrogen gas when both are at a pressure of 6.0 × 10 7 Pa. ..............................................................................................................................
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This note was uploaded on 09/21/2009 for the course PHYSICS 2211 taught by Professor Uzer during the Fall '08 term at Georgia Tech.

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Ideal Gas - 13 12 11 10 5.0 15 10 20 PV ×10 N m 2 P ×10...

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