0
Which gas effuses faster at the same temperature molecular oxygen or atomic argon?
Wiki User
∙ 12y ago
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Why does the coefficient of viscosity of liquids increase with an increase in temperature?
Temperature measures the speed of random thermal motion on the atomic and molecular level. When sub-microscopic particles are moving faster, the liquid as a whole will be more fluid and less viscous.
Do helium or argon gases move faster?
At the same temperature, helium gas will move faster due to its lower atomic weight. Helium has an atomic weight of 4g/ mol, while argon has an atomic weight of 39.95g/ mol.
What does Molecular Motion mean?
When the temperature increases during a chemical or physical change the molecular movement increases. This means the molecular movement is faster. If the temperature decreases the molecular movement decreases. This means the molecular movement is slower.
When a solid melts and temperature remains the same so where does that heat energy go?
It increases the molecular energy of the substance, the molecules of a liquid move faster than those of a solid at the same temperature.
What is heat and why do some thing things feel hotter than others?
Heat is the average kinetic energy (or energy of movement) of the atomic or molecular constituents of the substance in question. On the sub-microscopic scale, everything vibrates, and the faster the vibration, the higher the temperature. If you have two objects of the same temperature but one feels hotter than the other, it is because the one that feels hotter is a better conductor of heat. If the heat flows faster, the object will feel hotter.
Which is faster to effuse HCl or HBr?
HCl effuses faster due to less molecular mass (36.5) as compare to HBr (81).
Does changing the temperature affect the rate of osmosis?
Certainly; molecules move faster at a higher temperature (that is what temperature is, at a molecular level) and therefore undergo osmosis faster as well, since that is a form of molecular motion.
A physical property that tells you how hot or cold matter is?
The physical property that tells you how hot or cold matter is, we call temperature. Temperature consists of random motion on the atomic or molecular scale. Faster moving particles have higher temperatures.
Why does the coefficient of viscosity of liquids increase with an increase in temperature?
Temperature measures the speed of random thermal motion on the atomic and molecular level. When sub-microscopic particles are moving faster, the liquid as a whole will be more fluid and less viscous.
Is molecular movement directly related of inversely related to temperature?
Molecular movement is directly related to temperature. As temperature increase, the additional energy is absorbed by the molecules. This energy is converted to motion energy and the molecules will move faster.
When the temperature of the gas increase do the molecules slow down?
No. As temperature increases, particle movement increases.
Why do solids becomes more soluble in water as the temperature increases?
Temperature is a measurement of the average kinetic energy on the atomic or molecular level; hotter substances have faster moving particles. Faster moving particles have more energetic collisions with the particles of which solids are formed, which are more able to knock them out of the solid and into the solution, than slower moving particles would be.
What does heat result from?
Heat is random motion or vibrations that take place on an atomic or molecular level. The faster particles are moving, the hotter they are.
Do helium or argon gases move faster?
At the same temperature, helium gas will move faster due to its lower atomic weight. Helium has an atomic weight of 4g/ mol, while argon has an atomic weight of 39.95g/ mol.
What happens when the temperature of a substances changes?
When the temperature of a substance changes, the amount of random thermal motion on a molecular or atomic level changes accordingly; higher temperature means faster motion. A sufficient amount of temperature change will also result in a phase change. Cooling liquids freeze, heated liquids boil, heated solids melt, and so forth.
What does Molecular Motion mean?
When the temperature increases during a chemical or physical change the molecular movement increases. This means the molecular movement is faster. If the temperature decreases the molecular movement decreases. This means the molecular movement is slower.
Why an increase in temperature would increase the rate of diffusion of substance into or out of cells?
Simply put: it's because diffusion coefficients vary with temperature. You can think of temperature increase as an increase in the kinetic energy of molecular motion. Thus, at the molecular/atomic scale, substances are shuttling around at faster velocities and diffusion rates go up (for a better answer you can look-up brownian motion). Alternatively, you've simply increased the temperature to such a degree that the cell membrane lyses -- then you've got a diffusion problem for sure. Molecular biologists commonly use a less severe method called 'heat-shock' to introduce DNA into cells.
