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Olegator [25]
3 years ago
8

It refers to a charged particle or atom.

Chemistry
1 answer:
Kay [80]3 years ago
7 0
<h2><u>QUE</u><u>STION</u></h2>

It refers to a charged particle or atom.

<h2><u>CHOI</u><u>CES</u></h2>

<u>A.</u><u> </u><u>molecule</u>

B. bromine

C. potassium

D. sulfur

<h2><u>ANSWER</u></h2>

<h3><u>C</u><u>.</u><u> </u><u>pottasium</u></h3>
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Oxygen and hydrogen are kept under the same temperature and pressure. Oxygen molecule is 16 times more massive than hydrogen one
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Explanation:

When we increase the temperature of a substance then there will occur an increase in the kinetic energy of its molecules.

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So, kinetic energy is directly proportional to the temperature.

Hence, when temperature and pressure are kept the same for both oxygen and hydrogen gas then values of their kinetic energy will be the same irrespective of their masses.

Thus, we can conclude that kinetic energy of oxygen molecule is the same as compared to hydrogen molecule.

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A beaker is filled to the 500 mL mark with alcohol. What increase in volume (in mL) does the beaker contain when the temperature
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Answer:

"1.4 mL" is the appropriate solution.

Explanation:

According to the question,

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⇒ \Delta V = \alpha\times v_0\times \Delta \epsilon

By putting the given values, we get

           =1.12\times 10^{-4}\times 500\times 25

           =1.12\times 10^{-4}\times 12500

           =1.4  \ mL

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