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3 years ago

When the liquid state and the gaseous state of a substance are in equilibrium the rate of evaporation is?

2 answers:

8 0

The rate of evaporation is equal to rate of condensation in equilibrium......It means the evaporation rate becomes constant.....And thus equilibrium attained !!!

pogonyaev3 years ago

3 0

Answer:

The liquid-vapor equilibrium is reached when the chemical potentials of the substance are equal in both phases at a certain temperature and pressure. The evaporation rate is equal to the condensation

Explanation:

The most important considerations in the liquid-vapor balance are the following:

-The vapor phase is considered an ideal gas mixture.

-The liquid phase is considered an ideal solution.

Said equilibrium state occurs when the steam pressure is reached. This depends on the temperature, the nature of the components and the composition in each phase. For example, consider an ideal solution, the vapor pressure will be proportional to the moles of each component in the liquid phase and the vapor pressure of the pure substance at a temperature, according to Raoult's law.

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Why is acetic acid called weak acid?

Artemon [7]

Answer:

Acetic acid is a weak acid because it partially dissociates into its constituent ions when dissolved in water. This weak acid is known to form miscible mixtures with water. An acetic acid is an acid that ionizes only slightly in an aqueous solution. Therefore it's a weak acid.

Hope that helps. x

7 0

3 years ago

Read 2 more answers

Chlorine is used to make bleach solutions containing 5.25% NaClO (by mass). Assuming 100% yield in the reaction producing NaClO

Archy [21]

To make 1000. L of bleach solution 1.69×10⁴ L of Cl₂(g) at STP will be needed .

<h3>What is Balanced chemical equation?</h3>

A balance chemical equation is an equation that contain same number of atoms as well as of each element on each side of reaction.

<h3>What is Density?</h3>

It is ratio of mass to the volume.

Density= $\frac{Mass}{Volume}$

Now,

The balanced chemical equation of preparing bleach from chlorine is as follow:

Cl₂(g) + 2NaOH(aq) → NaClO(aq) + NaCl(aq) + H₂O(l)

Now,

To calculate the Moles of NaClO in 1000L solution, first calculate it's mass.

Mass of NaClO = Density × Volume

= 1.07 $\frac{g}{ml}$ × 1000L × $\frac{1000mL}{1L}$ × $\frac{5.25}{100}$

= 56175g

Now, we have to calculate moles of NaClO

Hence,

Moles of NaClO = $\frac{amount of NaClO}{molar mass of NaClO}$

= $\frac{56175g}{74.44\frac{g}{mol} }$

= 754.63 mol

Now,

According to the reaction number of moles of Cl₂ is equal to the number of moles of NaClO.

Hence,

moles of Cl₂ = 754.63 mol

Now , in order to calculate litres of Cl₂ at STP,

We know that

1 mol Cl₂ = 22.4 L of Cl₂

754.63 mol of Cl₂ = 754.63 mol × 22.4 L

= 1.69×10⁴ L of Cl₂

Thus from the above conclusion we can say that , to make 1000. L of bleach solution 1.69×10⁴ L of Cl₂(g) at STP will be needed .

Learn more about Balanced Chemical Equation here:brainly.com/question/27135494

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5 0

2 years ago

In the vertical columns of the periodic table, as the atomic numbers increase:

kolezko [41]

A.) The number of electron shells increases.

5 0

3 years ago

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What is the relationship between potential energy and speed

WARRIOR [948]

Answer:

For the purposes of your question, we can think of speed and velocity as being the same thing. Therefore, the potential energy of an object is proportional to the square of its velocity (speed). In other words, If there is a twofold increase in speed, the potential energy will increase by a factor of four.

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3 years ago

Indicate which of the following will elements will share the electrons and which one will transfer them?

DaniilM [7]

Answer:

Explanation:

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3 years ago