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Dmitrij [34]
3 years ago
15

Liquid alcohol will change to vapor when its temperature reaches the

Chemistry
1 answer:
Arte-miy333 [17]3 years ago
8 0
When it reaches the boiling point. When a substance reaches their boiling point, they change from liquid state to vapor state. Alcohol has a boiling point of around 78°C, so when you heat liquid alcohol to that temperature, it'll change to vapor.
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What property of matter best describes the way a typical alcohol thermometer works?
julsineya [31]

Answer:

  • <u>thermal expansion</u>

Explanation:

Matter expands when heated.

Matter is composed of particles (atoms, molecules or ions) which ocuppy a space.

At lower temperatures, matter has low kinetic energy, so the particles vibrate and or translate with low speed. When the matter is heated, the kinetic energy of the particles increases, meaning that they will vibrate and move faster.

When the particles vibrate and move faster they will occupy more space, which explains the thermal expansion.

So, at start the alcohol thermometer will be in thermal equilibrium with the surroundings (same temperature). The alcohol will occupy a certain volume inside the thermometer, which corresponds to a level mark (altitude of the alcohol inside the thermometer)

If the thermometer gets in contact with a colder substance, the walls of the thermometer will transfer heat to the colder substance, and the alcohol inside the thermometer will transfer heat to the walls of the thermometer. As result, the alcohol will lose kinetic energy and it will occupy less volume, which will cause that its level inside the thermometer fall.

On the other hand, if the thermometer gets in contact with a warmer substance, the heat will flow from the warmer substance to the alcohol inside the thermometer, the particles of alcohol will vibrate and move faster, its volume will increase and, being as it is contained inside the walls of the thermometer, its level will rise.

7 0
3 years ago
Do all the molecules contain only single bonds?
lesya692 [45]
No not all molecules contain only single bonds because they all have different shapes
3 0
3 years ago
Read 2 more answers
2. Water is an excellent solvent. With water being a polar
ladessa [460]

Answer:

Water acts as a solvent of carbon dioxide excreted from tissues, in blood and helps in regulating pH (because it forms carbonic acid that lowers pH when it tends to get higher). Blood pH should be maintained at about 7.4. One major reason is that the structure of protein is dependent ton pH because pH determines its ionization hence also affecting the charges and interaction between side groups of amino acids. A change in pH may, therefore, denature proteins and negatively affect cellular functions.

Explanation:

To get more on how water acts as a universal solvent check out brainly.com/question/7007192

7 0
3 years ago
Nitrogen gas effuses through an opening 1.59 times faster than an unknown gas.
Elodia [21]
A) Nitrogen has an ATOMIC mass number of 14, but nitrogen gas consists of N₂ molecules, so the mass to use in this problem is 28 g/mol. Rates of effusion ∝ 1/√(mass), so 

<span>√(mass unknown) /√28 = (rate N₂ effusion)/(rate unknown effusion) = 1.59 </span>
<span>∴ mass unknown = (1.59)²(28) = 70.78 g/mol </span>

<span>B) One possible gas that comes close for this mass is NF₃.</span>
5 0
3 years ago
Which of these would NOT be considered “maintaining homeostasis”?
EastWind [94]
I think the correct answer is D Hope this helps
4 0
3 years ago
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