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uysha [10]
3 years ago
5

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. Which postulate of ki

netic molecular theory best explains how this is possible?
Chemistry
1 answer:
Romashka-Z-Leto [24]3 years ago
7 0

Experimental observations on the behavior of gases can be explained by a simple theoretical model known as the kinetic molecular theory, which is used to explain the laws of gases determined experimentally.

This theory is based on a series of postulates. <em>One of the postulates that could explain why in a sample of oxygen at constant temperature the kinetic energy of all the balls remains constant is: </em>

  • <u>Collisions between gas particles or collisions with the vessel walls are perfectly elastic. None of the energy of a gas particle is lost when it collides with another particle or with the walls of the vessel. </u>

Explanation: If the oxygen particles lose energy when colliding with each other or with the walls of the container then their kinetic energy will decrease with time. This is analogous to a bouncing ball. When dropping a ball vertically, it will be observed that with each rebound it will reach a lower height, which is due to the loss of kinetic energy by friction with the ground or with the air that surrounds it.

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2 years ago
If you start with 3 moles of sodium and 3 moles of chlorine to produce sodium chloride, what is the limiting reagent?(you will n
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Sodium(Na) is the limiting reagent.

<h3>What is Limiting reagent?</h3>

The reactant that is totally consumed during a reaction, or the limiting reagent, decides when the process comes to an end. The precise quantity of reactant required to react with another element may be estimated from the reaction stoichiometry.

How do you identify a limiting reagent?

The limiting reactant is the one that is consumed first and sets a limit on the quantity of product(s) that can be produced. Calculate how many moles of each reactant are present and contrast this ratio with the mole ratio of the reactants in the balanced chemical equation to get the limiting reactant.

Start by writing the balanced chemical equation that describes this reaction

2Na_{(s)} + Cl_{2 (g)} -- > 2NaCl_{(s)}

Notice that the reaction consumes 2 moles of sodium metal for every 1 mole of chlorine gas that takes part in the reaction and produces 2 moles of sodium chloride.

now we can see that we have 3 moles of sodium and 3 moles of chlorine, according to question. so, we can say that sodium is the limiting reagent in the given situation.

to learn more about Limiting Reagent go to - brainly.com/question/14222359

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4 0
1 year ago
What is empirical and moleculer formula?.
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The molecular formula shows the exact number of molecules. Therefor, the empirical formula is the simplest formula of the molecular formula
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3 years ago
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Answer:its b

Explanation:

7 0
3 years ago
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What does the number of valence electrons determine?
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Valence electrons are the electrons in the outermost shell of an element on the periodic table. Atoms want to be able to have a full outer shell and they can share or trade electrons in order to achieve this. Valence electrons are also super super important in chemical reactions. The number of valence electrons determines what group that specific atom or element is in on the periodic table. This affects the reactivity of the element.

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