All Questions
Tagged with intermolecular-forces phase
10 questions
4
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0
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Is there experimental evidence to show boiling point increases with external electric field, and if so, by how much?
I was wondering whether anyone has demonstrated that a liquid will have a higher boiling point if it is placed in a very large electric field. I believe to be the case, since induced dipoles would be ...
- 149
7
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0
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102
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Why does diethylmethylamine have such a low melting point?
According to PubChem, diethylmethylamine has a remarkably low melting point of $-196.0\ \mathrm{^\circ C}$. This is substantially lower than the melting points of dimethylethylamine ($-140.0\ \mathrm{^...
- 213
0
votes
1
answer
209
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Relative magnitudes of intermolecular forces from phase diagrams
Is it possible to say whether or not a system A or B has stronger intermolecular forces from a phase diagram according to which:
The $T_{\text{b}}$ of A is lower than the $T_{\text{b}}$ of B.
The $T_{...
- 11
4
votes
1
answer
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Why is the boiling point of water and ammonia so different?
Boiling point of water is 100 degrees Celsius, while boiling point of ammonia is minus 33 degrees Celsius, which makes 133 degrees difference. Now when we discuss value of boiling point, we also say ...
- 970
2
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1
answer
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Why are naturally occuring liquids more rare than solids and gasses on Earth? [closed]
There are only a few naturally occurring liquids I can think of on earth, such as water, mercury and animal oils.
Why are naturally occuring liquids more rare than solids and gasses on Earth?
To be ...
- 129
1
vote
3
answers
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Sublimation of Iodine
Why does iodine sublime? I have researched it myself and I have got the same answer; it sublimes because it directly converts from solid to gas. But why don't bromine or chlorine also sublime?
- 71
20
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6
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Why does HCN boil at a higher temperature than NH3?
The boiling point of ammonia is −33 °C while that of $\ce{HCN}$ is 25 °C. In a recent AP (Advanced Placement) Chemistry test, a free response question asked why this is the case. Can someone shine ...
- 563
6
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1
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How to determine if a compound is likely to become a solid at room temperature?
Reasoning: My guess would have to be that it has to do with the strength of the intermolecular forces between each molecule. For example, molecular compounds that have a very low molar mass like $\ce{...
- 469
-1
votes
1
answer
405
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Interpreting a Phase Diagram?
The correct answer (that is false) is A) however can someone please explain why the other options would be true and why it is in fact possible to compress a solid to produce a liquid?
- 697
4
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Structures present in liquid water
I know this may be a too generic question, but here it goes anyway.
It is already know that solid water (ice) organizes its molecules in a lattice (in a variety of 16 different crystals and one ...
- 149