What is the primary cause of diffusion? 1.that some substances can dissolve in solvents 2.heat added to a substance 3.random internal motion of atoms and molecules 4.attraction of opposite atomic charges
Answers
the correct answer its:
random internal motion of atoms and molecules
hope it helps
Final answer:
The primary cause of diffusion is the random internal motion of atoms and molecules resulting from their thermal energy, leading substances to move from areas of high concentration to areas of lower concentration until evenly distributed. Factors like temperature and the mass of diffusing molecules affect the speed of diffusion. The process continues until it reaches a dynamic equilibrium, where there is no concentration gradient and no net movement of substances.
Explanation:
The primary cause of diffusion is the random internal motion of atoms and molecules due to their thermal energy, a concept derived from Physics. This motion allows substances to move in a way that they can evenly distribute themselves throughout a given space. As a result, diffusion is characterized by movement from high to lower concentration areas, a process that goes on until the substance is evenly distributed in a system.
Several factors can affect diffusion, such as temperature and the mass of the diffusing substance. Higher temperatures enhance the energy and therefore the movement of the molecules, leading to an increased diffusion rate. In contrast, lower temperatures decrease the energy and movement of molecules, thus reducing the diffusion rate. The mass of the molecules diffusing also plays a role - heavier molecules move slower, and therefore diffuse more slowly, whereas the reverse is true for lighter molecules.
A concentration gradient is the factor that primarily fuels the diffusion process. Greater the difference in concentration, the more rapid the diffusion. In case of solutions containing more than one substance, each type of molecule diffuses according to its unique concentration gradient, independently of other substances.
Eventually, the system reaches a stage known asdynamic equilibrium. At this stage, there's no net movement of the substance, yet the molecules continue to move around in the space. The concentration gradient no longer exists, which means that diffusion has ceased.
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During which process is water produced?a. alcohol fermentationb. acetyl CoA formationc. electron transport chaind. citric acid cycle
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
Explanation:
All the elements of group 1 in the periodic table are known as alkali metals. These are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (fr).
Characteristics of alkali metals are as follows.
- Alkali metals are soft and can be cut with a knife.
- They are good conductors of heat and electricity.
- They have only 1 electron in their outermost sub-shell.
- They are very reactive.
- Alkali metals are ionic in nature.
Answers
To know the end point we use phenolphthalein as indicator. Therefore, endpoint is point in which indicator change the color, and equivalence point is point in which there is equal amount of two chemicals.
What is titration?
Titration is a technique by which we know the concentration of unknown solution using titration of this solution with solution whose concentration is known. To know the end point we use phenolphthalein as indicator. End point is a point where completion of reaction happen.
Endpoint is point in which indicator change the color, and equivalence point is point in which there is equal amount of two chemicals. Endpoint is after Equivalence point.
Therefore, endpoint is point in which indicator change the color, and equivalence point is point in which there is equal amount of two chemicals.
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Answer:
Endpoint is point in which indicator change the color, and equivalence point is point in which there is equal amount of two chemicals. Endpoint is after Equivalence point.
Explanation:
Answers
Answer: The pH of the solution is 13.
Explanation:
pOH is defined as the negative logarithm of hydroxide ion concentration present in the solution.
We are given:
Concentration of (Conversion factor:
)
1 mole of calcium hydroxide produces 1 mole of calcium ions and 2 moles of hydroxide ions
Concentration of
Putting values in above equation, we get:
We know:
Hence, the pH of the solution is 13.
B. acid rain.
C. iron oxides.
D. calcium carbonate.
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What is a crosscutting concept for global temperature, explain.
Answers
Answer:
They include patterns; cause and effect; scale, proportion, and quantity; systems and system models; energy and matter; structure and function; and stability and change.
Explanation:
As such, they are a way of linking the different domains of science.
reactivity increases
atomic radius increases
atomic mass increases
valence electrons decrease