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Change in gas pressure using ideal gas equation.

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A sample of ammonia gas with a volume of 7.0 mL at a pressure of 1.68 atm is compressed to a final volume of 2.7 mL at constant temperature. Use the ideal gas law to calculate the final pressure.
a. 100 atm
b. 2.2 atm
c. 1 atm
d. 4.4 atm

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https://brainmass.com/chemistry/gas-laws/89810

Solution Summary

Using the ideal gas equation the new pressure of the gas is calculated.

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See Also This Related BrainMass Solution

Experiment to demonstrate the Ideal Gas Law.

Experiment to demonstrate the Ideal Gas Law.
Attached is the directions and data sheet. Here is the link for the data sheet. http://www.mhhe.com/physsci/physical/giambattista/thermo/thermodynamics.html

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Data and related questions
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Part 1

P (Pa) V (m^3) T(K)
498.6 5 300
453.27 5.5 300
415.5 6 300
383.53 6.5 300
356.14 7 300
332.4 7.5 300
311.62 8 300
293.29 8.5 300277 9 300
262.42 9.5 300
249.3 10 300

P (Pa) V (m^3) T (K)
249.3 10 300
262.42 9.5 300
277 9 300
293.29 8.5 300
311.62 8 300
332.4 7.5 300
356.14 7 300
383.53 6.5 300
415.5 6 300
453.27 5.5 300
498.6 5 300
554 4.5 300
623.25 4 300
712.28 3.5 300
831 3 300
997.2 2.5 300
1246.5 2 300
1662 1.5 300
2493 1 300

When we held the temperature constant and cut the volume in half, each time we reduced the volume we observed that the pressure (increased/decreased) by a factor of (1 / 2 / 4 /8 / 10). Circle the correct answer.

When we held the temperature constant and reduced the volume from 10 to 1, we observed that the pressure (increased/decreased) by a factor of ( 1 / 2 / 4 / 8 / 10). Circle the correct answer.
Part II

P (Pa) V (cm^3) T (K)
831 1 100
831 2 200
831 4 400
831 8 800
831 10 1000

When we held the pressure constant and double the temperature, each time we doubled the temperature we observed that the volume (increased/decreased) by a factor of ( 1 / 2 / 4 / 8 / 10). Circle the correct answer.

When we held the pressure constant and increased the temperature from 100 to 1000, we observed that the volume (increased/decreased) by a factor of (1 / 2 / 4 / 8 / 10). Circle the correct answer.

Part III

P (Pa) V (cm^3) T (K)
166.2 5 100
332.4 5 200
664.8 5 400
1329.6 5 800
1662 5 1000

When we held the volume constant and doubled the temperature, each time we doubled the temperature we observed that the pressure (increased/decreased) by a factor of (1 / 2 / 4 / 8 / 10). Circle the correct answer.

When we held the volume constant and increased the temperature from 100 to 1000, we observed that the pressure (increased/decreased) by a factor of (1 / 2 / 4 / 8 / 10). Circle the correct answer.

Part IV

(a.) We observed that as we compress the gas (decrease the volume) the temperature (increased/decreased) and pressure (increased/decreased). Circle the correct answers.

(b.) We observed that as we compress the gas (decrease the volume) the molecules moved (faster/slower) Circle the correct answer.

(c.) As we compressed the gas the temperature (increased/decreased) and kinetic energy of the molecules (increased/decreased) and the molecular activity (increased/decreased). Circle the correct answers.

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