If van der Waals constant "a" for NH3, H2 and CO2 are respectively 4.17, 0.244, 1.36 and 3.59, then which one of the following gases is most easily liquefied?

1. NH32. H23. O24. CO2

Subtopic:  Liquefaction of Gases & Liquid |
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To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
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The correction factor 'a' for the ideal gas equation corresponds to:
1. density of the gas molecules
2. volume of the gas molecules
3. electric field present between the gas molecules
4. forces of attraction between the gas molecules

Subtopic:  van der Waal’s Correction |
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NEET 2023 - Target Batch - Aryan Raj Singh
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Equal moles of hydrogen and oxygen gases are placed in container with a pin-hole through which both can escape. What fraction of the oxygen escapes in the time required for one-half of the hydrogen to escape?

1. 1/4         

2. 3/8         

3. 1/2           

4. 1/8

Subtopic:  Graham's Law |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology