Our results suggest that changing body temperature may have significant impact upon diffusive flux of low molecular weight compounds through muscle cells of fish.

What is diffusion coefficient affected by?

Diffusion coefficient depends on size and shape of molecule, interaction with solvent and viscosity of solvent.

How is diffusion coefficient determined?

The diffusion coefficient is calculated from the slope of the least-squares regression line relating the magnitude of the instantaneous solute flux to that of the instantaneous concentration gradient. Diffusion coefficients thus determined in water at 25 degrees C for CaCl2 (7.54 X 10(-6) cm2.

What is the effect of temperature on diffusion coefficient of solids?

3 Impact of Temperature on the Diffusivity Coefficient. Temperature increase generally increases the diffusivity and therefore the rate of gas emission from coal. Gilliland [8] shows that D is proportional to T 3/2 for elastic sphere–type molecules where T is the absolute temperature.

How does low temperature affect diffusion?

Temperature: Higher temperatures increase the energy and therefore the movement of the molecules, increasing the rate of diffusion. Lower temperatures decrease the energy of the molecules, thus decreasing the rate of diffusion.

What happens to the rate of diffusion if the temperature is increased class 9?

Temperature: Higher temperatures increase the energy and therefore the movement of the molecules, increasing the rate of diffusion. Lower temperatures decrease the energy of the molecules, thus decreasing the rate of diffusion. If the medium is less dense, diffusion increases.

How does diffusion coefficient of a gas vary with its temperature?

The diffusion coefficients in liquids and gases increase with temperature. However, the viscosity of liquids decreases with temperature, and so the diffusion coefficient increases faster than T with an increase in the temperature.

How the diffusion coefficient of gases is affected by the temperature and pressure?

4.4. In general, the diffusion coefficient is inversely proportional to pressure. Since the density of the gas is directly proportional to pressure at constant temperature, it is generally observed that the product of diffusivity and gas density remains constant over a large pressure range [7].