Question

A vessel contains x mole of nitrogen gas. the same vessel contains oxygen under similar temperature and pressure. how many of oxygen are present?

Answer 1

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Answer 2

Answer:

The number of moles of oxygen gas present in the same vessel under the same temperature and pressure is x moles.

Explanation:

Given,

The number of moles of nitrogen gas = x mole

• Temperature = T

• Pressure = P

• Volume = V

The number of moles of oxygen gas present in the same vessel under the same temperature and pressure =?

Therefore, for oxygen gas;

• Temperature = T

• Pressure = P

• Volume = V

As we know,

• From the ideal gas equation:
• $PV = nRT$

If the pressure, volume and temperature are the same for both the gases, therefore, the number of moles will also be the same for both the gases.

Also,

• According to Avogadro's law, "the equal volumes of all the gases, at the same temperature and pressure, have the same number of moles".

Hence,

• The number of moles of oxygen gas present in the same vessel under the same temperature and pressure = x moles.