The mean free path ($\mathrm{\lambda }$) of a gas sample is given by:

1. $\lambda =\sqrt{2}\pi {\sigma }^{2}N$

2. $\lambda =1/\sqrt{2}\pi {\sigma }^{2}N$

3. $\lambda =\sqrt{2}\pi \mu {\sigma }^{2}N$

4. none of these

Subtopic:  Kinetic Theory of Gas |
69%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Which is lighter than dry air?

1. Moist air

2. SO2

3. Cl2

4. O2

Subtopic:  Introduction to States of Matter |
51%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

The ratio a/b (the terms used in van der Waals' equation) has the unit-

1. atm litre mol-1

2. atm dm3 mol-1

3. dyne cm mol-1

4. All of the above

Subtopic:  van der Waal’s Correction |
63%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

At relatively high pressure, van der Waals' equation reduces to-

1. PV = RT

2. PV = RT + a/v

3. PV = RT + Pb

4. PV = RT - a/V2

Subtopic:  van der Waal’s Correction |
56%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

The maximum deviation from ideal gas behaviour takes place -

1. At high temperature and low pressure.

2. At low temperature and high pressure.

3. At high temperature and high pressure.

4. At low temperature and low pressure.

Subtopic:  Kinetic Theory of Gas |
61%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Joule-Thomson coefficient ($\partial \mathrm{T}/\partial \mathrm{P}$)H for an ideal gas is:

1. zero

2. +ve

3. -ve

4. none of these

Subtopic:  Liquefaction of Gases & Liquid |
63%
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NEET 2023 - Target Batch - Aryan Raj Singh
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All the three states H2O, i.e., the triple point for H2O the equilibrium,

Ice $⇌$Water$⇌$Vapour exist at:

1. 3.85 mm and 0.0981 $°$C

2. 4.58 mm and 0.0098 $°$C

3. 760 mm and 0$°$C

4. none of the above

Subtopic:  Liquefaction of Gases & Liquid |
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NEET 2023 - Target Batch - Aryan Raj Singh
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The unit of van der Waals' constant 'a' is:

1. atm litre2 mol-2

2. dyne cm4 mol-2

3. newton m4 mol-2

4. All of the above

Subtopic:  van der Waal’s Correction |
67%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The unit of van der Waals' constant 'b' is :

1. cm3 mol-1

2. litre mol-1

3. m3 mol-1

4. All of these

Subtopic:  van der Waal’s Correction |
80%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

At STP, 0.50-mole H2 gas and 1.0 mole He gas

1. have equal average kinetic energies

2. have equal molecular speeds

3. occupy equal volumes

4. have equal effusion rates

Subtopic:  Kinetic Theory of Gas |
56%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints