15 Which statement describes the particles of an ideal gas, based on the kinetic molecular theory?(1) The motion of the gas particles is orderly and circular.
(2) The gas particles have no attractive forces between them.
(3) The gas particles are larger than the distances separating them.
(4) As the gas particles collide, the total energy of the system decreases.
Answers
Ans: (2) The gas particles have no attractive forces between them.
The kinetic theory explains the behaviour of a hypothetical ideal gas. It explains pressure in terms of the collision of gas particles against the walls of the container which it occupies.
The kinetic theory of gases is based on three main postulates:
1) The collision between gas particles is elastic i.e. no energy is lost or gained
2) The gas particles are treated as point masses i.e. the volume occupied by the gas particles is negligible when compared to the volume of the container
3) There are no attractive or repulsive forces between particles.
The statement that describes the particles of an ideal gas, based on the kinetic molecular theory is .
Further Explanation:
Kinetic theory of gases depicts gas as a large number of particles that are in continuous random motion. It explains the macroscopic properties of gases by taking into account their molecular composition and motion.
Postulates of kinetic theory of gases:
i) The gas molecules are very small and are located far apart from each other. Most of the volume occupied by the gas is an empty space.
ii). The molecules of the gas are in rapid random motion. These can move in all directions.
iii). The gas molecules undergo collisions with each other and with the walls of the container. The collisions between molecules and container walls are responsible for the pressure of the gas.
iv). There is no loss of kinetic energy when gas molecules collide so their collisions are known as perfectly elastic.
v). No interaction occurs between different molecules of gas during collisions.
(1) The motion of the gas particles is orderly and circular.
The molecules of a gas move randomly in all directions so their motion is not orderly and circular.
(2) The gas particles have no attractive forces between them.
The molecules of a gas move randomly in all directions so their motion is not orderly and circular.
(3) The gas particles are larger than the distances separating them.
The particles of gas are very small and are situated far away from each other. So the distance between the particles is larger than their size and not vice-versa.
(4) As the gas particles collide, the total energy of the system decreases.
The collisions of gas molecules are considered to be perfectly elastic. So the total energy of the system remains constant. It neither increases nor decreases.
Therefore option (2) describes the particles of an ideal gas on the basis of the kinetic molecular theory.
Learn more:
- What is the kinetic energy of electrons? brainly.com/question/5031462
- Which statement is true for Boyle’s law: brainly.com/question/1158880
Answer details:
Grade: High School
Subject: Chemistry
Chapter: Ideal gas equation
Keywords: collisions, gas, random motion, kinetic energy, perfectly elastic, interaction, container, kinetic theory of gases, volume, motion, orderly, circular, decreases.
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Cat's tend to eat more in the afternoon than in the morning and night.
Scientists believe it is the best explanation because it is built on data and observations.
The majority of the scientific community voted on this theory over other possible explanations.
It is the best explanation because it supports the beliefs and opinions of most scientists.
It is a scientific law that has been supported by experimental data.
Answers
Answer:
The correct answer will be option-It is the best explanation because it supports the beliefs and opinions of most scientists.
Explanation:
Albert Einstein is known for his theory of relativity which states that energy is a converted form of mass to the square of the speed of light which is constant.
Albert Einstein was a theoretical physicist who used the facts and data from the papers of the previous physicist. Although he used the facts his theory became one of the important theory in the physics world as it explained the path of the light and the form in which it travels.
This theory is well accepted today as it was supported by the experiments and observation of the other works of different scientist. This led to the acceptance of the theory worldwide.
Thus, the selected option is the correct answer.
B. kilometers
C. millimeters
D. centimeters
Answers
Answer:
The answer is C
Explanation:
Precision generally means been accurate (and can be loosely interpreted to mean been exact). Length is averagely measured in meters. However, in order to get the actual length of a substance using a tape, millimeters give the most accurate length (of all the options) as it provides the length to the smallest details (of all the options provided). The illustration below shows the relationship between millimeters and the rest of the options.
while 1 kilometer = 1000 meters
1 meter = 100 centimeters
1 centimeter = 10 millimeters
From the relationship above, millimeters is clearly the most precise of all the options provided.
Answer: C. milimeters.
Answers
.... I hope it helps
Final answer:
Two oxygen atoms form a stable molecule by sharing two pairs of electrons, forming a double covalent bond. This is an important process for achieving the required octet electron configuration for both oxygen atoms.
Explanation:
When two oxygen atoms combine to form a molecule, the type of bond they form is a double covalent bond. An atom of oxygen has six electrons in its valence shell and it requires two more to achieve stability, hence, the oxygen atom achieves this equilibrium by sharing two pairs of electrons forming a double covalent bond. This is similar to the example of hydrogens and an oxygen atom sharing electrons to form a water molecule, where covalent bonds are also present.
The creation of a double bond occurs as these atoms share more than one pair of electrons to attain the required octet configuration. This could also be seen in bonds formed between carbon and oxygen atoms in formaldehyde (CH₂O), or between carbon atoms in ethene (C₂H4).
The covalent bond formed between these two oxygen atoms is, therefore, a key component for them to form a stable molecule.
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b) holds less dissolved oxygen than cold water
c) is beneficial to living organisms in aquatic ecosystems
d) contains more hydrogen than cold water
Answers
Hot water holds less dissolved oxygen than cold water.
Answers
D is the correct process to convert 36 yds to centimetres 2.54 cm = 1 in.
What are centimetres?
A metric unit of length, equal to one-hundredth of a metre.
To convert a yard measurement to a centimetre measurement, multiply the length by the conversion ratio. The length in centimeters is equal to the yards multiplied by 91.44.
D is the correct process to convert 36 yds to centimetres 2.54 cm = 1 in.
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Answer:
D
Explanation:
A P E X