Consider this molecular‑level representation of a mixture of gases. There are three gas particles containing two spheres. There are six gas particles containing a single sphere of a different color. There are five gas particles containing a single sphere of a third color. If the partial pressure of the diatomic gas is 0.330 atm, what is the total pressure?
Answers
The total pressure of the gaseous mixture is 1.57 atm.
The mixture of the gases consists of 3 diatomic molecules, 6 monoatomic molecules, and 5 other monoatomic molecules.
The total number of molecules in the mixture are:
Computation for the total pressure of the gas
The total pressure of a gas by Raoult's law is given as:
The partial pressure of the diatomic gas is 0.330 atm.
The mole fraction of the diatomic gas is given as:
The mole fraction of the diatomic gas is 0.2.
The total pressure of the gas is given as:
The total pressure of the gaseous mixture is 1.57 atm.
Learn more about the pressure of the gas, here:
Explanation:
The given data is as follows.
Number of particles of diatomic gas = 3
Number of particles of monoatomic gas = 6
Number of particles of another monoatomic gas = 5
Therefore, total number of particles or moles present will be as follows.
3 + 6 + 5 = 14
As we know that, mole fraction =
Hence, more fraction of the diatomic gas will be as follows.
mole fraction =
=
= 0.21
Now, formula to calculate partial pressure will be as follows.
Partial pressure of one species = molar fraction of that species x total pressure
Therefore,
= 1.57 atm
Thus, we can conclude that total pressure is 1.57 atm.
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Answers
atoms are made of 3 types of subatomic particles - electrons, protons and neutrons
mass of proton is 1 atomic mass unit and proton is also 1 atomic mass unit
masses of protons and neutrons are very similar
mass of an electron is 1/1840th of 1 atomic mass unit
mass of electron is insignificant when compared to masses of neutrons and protons
protons and neutrons have a larger mass than electrons
from the given options correct answer is
(3) The mass of a proton is greater than the mass of an electron
Protons have mass 1
Neutrons have mass 1
(1) 0 is not greater than 1
(2) 0 is not greater than 1
(3) 1 is greater than 0
(4) 1 is not greater than 1
So the answer is (3) The mass of a proton is greater than the mass of an electron
b. because the warmer air allows the particles to be free from gravitational forces
c. because the heat liberates the potential energy inside each molecule eliminate
d. because the warmer air is less dense and particles can move more
Answers
Answer: Option (a) is the correct answer.
Explanation:
When temperature of surrounding atmosphere around the tire increases then it will lead to increase in the kinetic energy of molecules.
Due to increase in kinetic energy of molecules there will be more number of collisions between the air molecules that are present inside the bicycle tire.
Hence, it means heat has been transferred from the surrounding atmosphere to the molecules inside the tire.
Thus, we can conclude that the air molecules inside a bicycle tire speed up as the temperature gets warmer because the heat is transferred to the molecules and gives them more kinetic energy.
Answers
Answer :
As we know that there are two types of solids.
(1) Amorphous Solids
(2) Crystalline Solids
Amorphous Solids : It is a type of solids in which the constituent particles of the matter are arranged in the random manner.
That means there is no proper arrangement of atoms in solid lattice but the atoms or molecules are closely spaced that means they can move freely from one place to another.
The examples of amorphous solid are, plastics, glass, rubber, metallic glass, polymers, gel, fused silica, pitch tar, thin film lubricants, wax.
Crystalline Solids : It is a type of solids where the constituent particles of the matter are arranged in the specific manner.
That means there is a proper arrangement of atoms in solid lattice. They do not have space between the molecules or atoms and they can not move freely from one place to another.
The examples of crystalline solids are, quartz, calcite, sugar, mica, diamonds, snowflakes, rock, calcium fluoride, silicon dioxide, alum.
Answers
Answers
Answer:
C. Electrons
Explanation:
Answers
Answer:
The atomic mass is the weighted average of all the naturally occurring isotopes of the element.
Explanation:
A. The atomic mass is the weighted average of all the naturally occurring isotopes of the element. YES. Since there can be several different isotopes of the same element, the weighted average is used in the periodic table to reflect the likely composition of a random sample.
B. The atomic mass is determined by the number of protons in the nucleus. NO
C. The atomic mass is a whole number, but it appears as a fraction due to rounding in the periodic table. NO.
D. The atomic mass is a decimal number because it represents the total number of electrons in the atom. NO.