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Masteriza [31]
3 years ago
10

Which of the following are accurate descriptions of closed and open thermodynamic processes? open processes are 'flow through' p

rocesses in closed processes the working substance enters from the right and exits to the left open processes take place in a sealed, rigid container Volume occupied by the gas sakes no sense in closed processes
Chemistry
1 answer:
Shalnov [3]3 years ago
7 0

Answer: Option (a) is the correct answer.

Explanation:

According to thermodynamics, a closed system is defined as the system in which there will be no exchange of matter takes place but there will be exchange of energy between the system and surrounding.

On the other hand, an open system is defined as the system in which there will be exchange of both matter and energy takes place between system and surrounding.

Hence, we can conclude that out of the given options accurate descriptions of closed and open thermodynamic processes is that open processes are 'flow through' processes.

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What correctly identifies the charge of an atom? <br><br> 2<br> -1<br> 0<br> 1
Nuetrik [128]

Answer:

0

Explanation:

A neutral atom will have a charge of zero.

4 0
3 years ago
Find the pH of a 0.100 molar H2C6O6 solution with ka, where KA is equal 8.0×10–5​
lubasha [3.4K]

The pH of the solution is 2.54.

Explanation:

pH is the measure of acidity of the solution and Ka is the dissociation constant. Dissociation constant is the measure of concentration of hydrogen ion donated to the solution.

The solution of C₆H₂O₆ will get dissociated as C₆HO₆ and H+ ions. So the molar concentration of 0.1 M is present at the initial stage. Lets consider that the concentration of hydrogen ion released as x and the same amount of the base ion will also be released.

So the dissociation constant Kₐ can be written as the ratio of concentration of products to the concentration of reactants. As the concentration of reactants is given as 0.1 M and the concentration of products is considered as x for both hydrogen and base ion. Then the

K_{a}=\frac{[H^{+}][HB] }{[reactant]}

[HB] is the concentration of base.

8 * 10^{-5} =\frac{x^{2}  }{0.1}\\\\\\x^{2} = 8 * 10^{-5}*0.1

x^{2} = 0.08 * 10^{-4}\\ \\x = 0.283*10^{-2}

Then

pH = - log [x] = - log [ 0.283 * 10^{-2}]\\ \\pH = 2 + 0.548 = 2.54

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4 0
3 years ago
A study of the decomposition reaction 3RS2  3R + 6S yields the following initial rate dat
shutvik [7]
Missing question: What is the rate constant for the reaction?
<span>[RS2](mol L-1) Rate (mol/(L·s))
0.150                0.0394
0.250                0.109
0.350                0.214
0.500                0.438</span>
Chemical reaction: 3RS₂ → 3R + 6S.
Compare second and fourth experiment, when concentration is doubled, rate of concentration is increaced by four. So rate is:
rate = k·[RS₂]².
k = 0,438 ÷ (0,500)².
k = 1,75 L/mol·s.
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3 years ago
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B.Elements

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Can someone help me with this?? I don't understand at all its about acids and bases
podryga [215]
I think Bleach formula is <span>NaClO</span>
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