A 10 l bulb contains an ideal gas of molar mass 81 at 27°C. Some gas is removed from the bulb until — States of Matter and Gaseous State Chemistry Question
Question
A 10 l bulb contains an ideal gas of molar mass 81 at 27°C. Some gas is removed from the bulb until the pressure of gas decreased by 0.82 atm. The mass of gas removed is
Answer: A
💡 Solution & Explanation
Moles removed dn = dP * V / RT = 0.82 * 10 / (0.0821 * 300) = 0.333 mol. Mass = 0.333 * 81 = 27 g. Therefore, correct answer is A.
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