Description
What happens to the pressure inside a rigid container if the amount of nitrogen gas increases from 0.500 mole to 0.750 mole? The original pressure is 98.0 kPa, and the temperature remains constant.
Explanation & Answer
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Use Ideal gas equation:
PV = n/MM RT
As V, MM, R, and T are constant, so P is directly proportional to n
P1/n1 = P2/n2
98.0 / 0.500 = P2 / 0.750
P2 = 98.0 / 0.500 x 0.750
= 147 kPa
The pressure is increased from 98 kPa to 147 kPa.
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