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Ann [662]
1 year ago
5

A balloonist begins a trip in a helium-filled balloon in early morning when the temperature is 15°C. By mid-afternoon, the tempe

rature is 30.°C. Assuming the pressure remains at 1.00 atm, for each mole of helium, calculate the following:
(f)  Explain the relationship between the answers to parts (d) and (e).
Chemistry
1 answer:
german1 year ago
5 0

The relationship between the answers to parts (d) and (e) is given that the system doesn't have constant pressure, ΔH(enthalpy change) and Q(heat transferred) can be stated to be equal to one another.

A thermodynamic system's enthalpy, which is one of its properties, is calculated by adding the system's internal energy to the product of its pressure and volume. It is a state function that is frequently employed in measurements of chemical, biological, and physical systems at constant pressure, which the sizable surrounding environment conveniently provides.

Q (Heat) is referred to as energy in motion. On the other hand, enthalpy (ΔH) represents the system's condition and total heat content. The change in internal energy is equal to the heat transmitted to, less the work done by, the system, according to the law of energy conservation. The enthalpy change(ΔH) is precisely equal to the heat transferred(Q) to the system if the sole work performed is a change in volume at constant pressure.

To know more about enthalpy refer to:  brainly.com/question/13996238

#SPJ4

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In a <u>Saturated </u>solution, the rate of dissociation equal to the rate of crystallization

Explanation:

A saturated solution is one than cannot dissolve any more solute because the solutes inter-molecular spaces are filled with the solute molecules at that temperature. When an attempt is made to dissolve more solute into the solution, the rate at which the solute is dissolved into the solution is equal to the rate at which excess solute is precipitated and crystallized.

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If the speed of a sound wave increases what other property of the wave must also increase when all other wave properties are hel
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<h2>Frequency</h2>

Explanation:

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8 0
3 years ago
A sample of 19 mg of 9-fluorenone is dissolved in 5 mL of diethyl ether. The resulting organic
maks197457 [2]

Answer:

15.70mg would remain

Explanation:

Partition coefficient is used to extract or purify a solute from a solvent selectively to avoid interference from other substances. For the problem, formula is:

Kp = Concentration 9-fluorenone in ether / Concentration of solute in H₂O

After the solute, 9-fluorenone, is extracted with water, the mass that remains in ether is:

(19mg - X)

<em>Where X is the mass that now is in the aqueous phase</em>

Replacing in Kp formula:

9.5 = (19mg - X) / 5mL / (X /10mL)

0.95X = 19mg - X / 5mL

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5.75X = 19

X = 19 / 5.75

X = 3.30mg

That means 9-fluorenone that remain in the ether layer is:

19mg - 3.30mg =

<h3>15.70mg would remain</h3>
8 0
3 years ago
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