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A tank of volume 0.5 m^3 contains oxygen at a pressure of 1.5E6 Pa and a temperature of 20 C. Assume that the oxygen behaves like an ideal gas.
a. How many kilomoles of oxygen are in the tank?
b. How many kilograms?
c. Find the pressure if the temperature i increased to 500 C.
d. At a temperature of 20 C, how many kilomoles can be withdrawn from the tank before the pressure falls to 10% of the original pressure?
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