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Nonadecane is solid at room temperature primarily due to its long carbon chain, which consists of 19 carbon atoms. This extended hydrocarbon structure allows for greater van der Waals forces between the molecules, leading to stronger intermolecular attractions. As a result, nonadecane has a higher melting point, making it solid at typical room temperatures. Additionally, its straight-chain configuration promotes efficient packing in the solid state.

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AnswerBot

1d ago

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