All categories

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.

You might be interested in

Which of the following CANNOT be determined by looking at the spectra of a star? *

Rzqust [24]

Answer:

A:temperature

Explanation:

The temperature cannot be determined by looking at the spectra of the star due to lack of the equipment for its measurement. On the other-hand, the remaining statements like the distance from earth, movement towards or away from earth can be determined.

8 0

2 years ago

Which property of potential energy distinguishes it from kinetic energy

satela [25.4K]

The property of potential energy that distinguishes it from kinetic energy are Shape and position

8 0

2 years ago

Water has a density of 1.0 g/cm3. Glycerin, a liquid used in some soaps, has a density of 1.26 g/cm3. If an object sinks in wate

sdas [7]

For an object to sink in something, it's density has to be higher than the object it is in, so if it sinks in water the number has be higher than 1

And to float, and objects density has to be lower than that of the substance it is put in, so it has to be lower than 1.26

So between 1 and 1.26

5 0

3 years ago

Read 2 more answers

Given that a theoretical yield for isolating Calcium Carbonate in this experiment would be 100%. From that information and based

Stels [109]

Answer:

It's well Explained below.

Explanation:

First of Excess product of CaCO_3 would be produced due to the fact that there would not be enough CaCl_2 to react with Na_2•CO_3. The main purpose of having stoichiometric quantities is for us to know the correct amount or near the correct amount of each reactant in order to create a product that will be close to the theoretical amount and thus have a higher percent yield.

8 0

3 years ago

The CRC Handbook, a large reference book of chemical and physical data, lists two isotopes of indium (). The atomic mass of 4.28

ivanzaharov [21]

Answer: The mass of second isotope of indium is 114.904 amu

Explanation:

Average atomic mass of an element is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.

Formula used to calculate average atomic mass follows:

.....(1)

Let the mass of isotope 2 of indium be 'x'

For isotope 1:

Mass of isotope 1 = 112.904 amu

Percentage abundance of isotope 1 = 4.28 %

Fractional abundance of isotope 1 = 0.0428

For isotope 2:

Mass of isotope 2 = x amu

Percentage abundance of isotope 2 = [100 - 4.28] = 95.72 %

Fractional abundance of isotope 2 = 0.9572

Average atomic mass of indium = 114.818 amu

Putting values in equation 1, we get:

$114.818=[(112.904\times 0.0428)+(x\times 0.9572)]\\\\x=114.904amu$

Hence, the mass of second isotope of indium is 114.904 amu

4 0

2 years ago