Which of the following substances would you expect to have the largest van der Waals a constant value? A)CO₂ B)F₂ C)CH₃CH₂OH D)CH₃Cl E)N₂

Question

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Van der Waals constant (a) depends on the size of the molecule and the strength of the intermolecular forces between them. In general, larger molecules have higher van der Waals constants.

Among the given choices, the molecule with the largest size is CH3(CH2)11SH (option C). This molecule has a long hydrocarbon chain and a polar -SH group, which can contribute to strong intermolecular forces. Therefore, we would expect it to have the highest van der Waals constant.

Which of the Following Substances Would You Expect to Have