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Debora [2.8K]
3 years ago
15

Which example best demonstrates Charles’s law?

Chemistry
2 answers:
Liono4ka [1.6K]3 years ago
6 0

Answer:

A

Explanation:

The Charles law states that the volume of an ideal gas increases when temperature is increased under constant pressure. The pressure inside the balloon is always equal to the atmospheric pressure. Therefore answer A demonstrate the Charles law.

Assoli18 [71]3 years ago
6 0

<u>Answer:</u>

<em>D.  A syringe pulls in air as the plunger is pulled back.</em>

<u>Explanation:</u>

As per Charles’s law  

At constant pressure for a given amount of a gas,

Volume is directly proportional to its temperature.

Directly proportional means when one increases the other one too will increase. That is when volume increases temperature too will increase. When volume decreases, temperature too will show a decrease.

Option A tells us that the volume of the hot air balloon increase due to the rise(increase) in temperature as the balloon is heated

Thus the expression is V \propto T

\frac {V}{T} = k where k is a constant  

When there is a change in the volume and temperature the expression will be

\frac {V_1}{T_1} = \frac {V_2}{T_2}

where V_1 and T_1 are the initial volume and initial temperature and V_2 and T_2 are the final volume and temperature.

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Explanation:

Mitosis is a type of cell division in which daughter cell produced are genetically identical to their mother cell. So, no. of chromosome does not change after mitosis.

So, at the end of mitosis, each daughter cell would have <u>20</u> chromosome.

Meiosis is a type of cell division in which mother cell produces two haploid cells ones with a single set of chromosomes.

Meiosis is a two step cell division, Meiosis I and Meiosis II.

In meiosis I, homologous pair separates, so no. of chromosomes becomes half.

In meiosis II, sister chromatids separates. So, the number of chromosomes remains same (i.e. Have same no. of chromosome as present in cell produced after meiosis I).

So, at the end of mitosis, each daughter cell would have <u>20</u> chromosome.

At the end of meiosis I, each daughter cell would have n = 10 chromosomes. At the end of meiosis II, each daughter cell would have n = 10 chromosomes.

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diagram 1 above shows equimolar samples of two gases inside a container fitted with a removable barrier placed so that each gas
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In this case, we can analyze that each gas has its own pressure and due to the removal of the barrier, both pressure and volume undergo a change. Thus, we can infer that the final volume is doubled with respected to the initial one for each gas, causing the pressure of each gas to be halved and the total pressure the half of the added ones, in agreement to the Boyle's law (inversely proportional relationship between pressure and temperature).

Therefore, the correct choice is:

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Learn more:

  • brainly.com/question/21184611

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Answer:

True

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