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3 years ago

Which of the following would remain a liquid longer as temperature continues to drop?

Chemistry

2 answers:

Len [333]3 years ago

8 0

Answer:

Octane

Explanation:

Hydrocarbons are composed of carbon and hydrogen atoms and are generally non-polar. The only intermolecular force of attraction between hydrocarbons is the weak van der waals interaction. Longer the hydrocarbon chain, stronger will be this interaction.

In the given options:

Propane = C3H8

Octane = C8H18

Hexane = C6H14

Ethane = C2H6

Thus, octane is has the longest chain and will have the strongest van der waal interaction which will allow the molecule to stay in a liquid state longer.

viktelen [127]3 years ago

3 0

I just took a test with this question and got the answer wrong for saying ethane. The correct answer is propane.

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Can anybody check my answer?

anzhelika [568]

Answer:

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Explanation:

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Data:

$\begin{array}{rcrrcl}p_{1}& =& \text{100 kPa}\qquad & V_{1} &= & \text{10.00 L} \\p_{2}& =& \text{50 kPa}\qquad & V_{2} &= & ?\\\end{array}$

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$\begin{array}{rcl}100 \times 10.00 & =& 50V_{2}\\1000 & = & 50V_{2}\\V_{2} & = &\textbf{20 L}\\\end{array}\\\text{The new volume will be } \boxed{\textbf{20 L}}$

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