Exam 3 solution

# Exam 3 solution - Version 070 Exam Three Shear Shear(52375...

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Version 070 – Exam Three: Shear – Shear – (52375) 2 within a 275 mL flask at 0 C. If the total pres- sure is 780 torr, the CO has a partial pressure of 330 torr and the CO 2 has a partial pressure of 330 torr, what is the partial pressure of O 2 ? 1. 330 torr 2. 660 torr 3. 120 torr correct 4. 900 torr 5. 780 torr Explanation: P total = 780 torr P CO = 330 torr P CO 2 = 330 torr P total = P CO + P CO 2 + P O 2 P O 2 = P total - P CO - P CO 2 = 780 torr - 330 torr - 330 torr = 120 torr 004 10.0 points To promote ideal behavior of a gas, one should (raise/lower) the pressure and (raise/lower) the temperature of the gas.
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