The fraction of molecular volume to the actual volume occupied by oxygen gas at STP is: (Take the diameter of an oxygen molecule to be 3 Å).
1. 4 × 10−4
2. 5 × 10−4
3. 3 × 10−4
4. 1 × 10−4

Subtopic:  Ideal Gas Equation |
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Molar volume is the volume occupied by \(1\) mol of any (ideal) gas at standard temperature and pressure is:
(STP: \(1\) atmospheric pressure, \(0~^\circ \text{C}\))
1. \(0\) 
2. \(22.4\) litres
3. \(11.2\) litres
4. \(1\) litres

Subtopic:  Ideal Gas Equation |
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The figure shows a plot of \(\dfrac{PV}{T}\) versus \(P\) for \(1.00\times10^{-3} \) kg of oxygen gas at two different temperatures.

      

Then relation between \(T_1\) and \(T_2\) is: 
1. \(T_1=T_2\)
2. \(T_1<T_2\)
3. \(T_1>T_2\)
4. \(T_1 \geq T_2\)

Subtopic:  Ideal Gas Equation |
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The figure shows a plot of \(PV/T\) versus \(P\) for \(1 . 00 \times 10^{- 3}   \text{ kg}\) of oxygen gas at two different temperatures.

The value of \(PV/T\) where the curves meet on the y-axis is:

1. 0.06 J K-1
2. 0.36 J K-1
3. 0.16 J K-1
4. 0.26 J K-1

Subtopic:  Ideal Gas Equation |
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An oxygen cylinder of volume 30 litres has an initial gauge pressure of 15 atm and a temperature of 27 °C. After some oxygen is withdrawn from the cylinder, the gauge pressure drops to 11 atm, and its temperature drops to 17 °C. The mass of oxygen taken out of the cylinder is: R=8.31 mol-1K-1, molecular mass of O2=32 u

1. 0.14 kg
2. 0.16 kg
3. 0.18 kg
4. 0.21 kg

Subtopic:  Ideal Gas Equation |
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An air bubble of volume 1.0 cm3 rises from the bottom of a lake 40 m deep at a temperature of 12 °C. To what volume does it grow when it reaches the surface, which is at a temperature of 35 °C?
1. 5.3 cm3
2. 4.0 cm3
3. 3.7 cm3
4. 4.9 cm3

Subtopic:  Ideal Gas Equation |
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What is the total number of air molecules (inclusive of oxygen, nitrogen, water vapor, and other constituents) in a room of capacity \(25.0\) mat a temperature of \(27^\circ \mathrm C\) and \(1\) atm pressure?
1. \(6.1\times10^{23}\) molecules
2. \(6.1\times10^{26}\) molecules
3. \(7.1\times10^{23}\) molecules
4. \(7.1\times10^{26}\) molecules

Subtopic:  Ideal Gas Equation |
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