Question:
In van der Waals' equation of state of the gas law, the constant 'b' is a measure of:
In van der Waals' equation of state of the gas law, the constant 'b' is a measure of:
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a = attraction; b = bulkiness (volume).
Updated On: Apr 8, 2026
- intermolecular repulsion
- intermolecular attraction
- volume occupied by the molecules
- intermolecular collisions per unit volume
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The Correct Option is C
Solution and Explanation
Step 1: Concept
The van der Waals' equation is $(p + \frac{a}{V^{2}})(V - b) = RT$.
Step 2: Analysis
Constant 'a' represents intermolecular forces, while 'b' is the volume correction.
Step 3: Conclusion
Constant 'b' arises due to the finite size of the molecules, measuring the excluded volume.
Final Answer: (C)
The van der Waals' equation is $(p + \frac{a}{V^{2}})(V - b) = RT$.
Step 2: Analysis
Constant 'a' represents intermolecular forces, while 'b' is the volume correction.
Step 3: Conclusion
Constant 'b' arises due to the finite size of the molecules, measuring the excluded volume.
Final Answer: (C)
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