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negation
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VTh= sqrt[(3RT)/M] where M is the molar mass
How do we determine which R constant to use?
How do we determine which R constant to use?
nasu said:What do you mean? Do you suppose there more than one?
Thermal speed VTh is a measure of the average speed of particles in a gas or liquid at a given temperature. It is also known as the root mean square (RMS) speed and is often represented by the symbol u.
VTh can be calculated using the formula VTh = √(3kT/m), where k is the Boltzmann constant, T is the temperature in Kelvin, and m is the mass of the particle. This formula is derived from the Maxwell-Boltzmann distribution, which describes the distribution of speeds of particles in a gas.
The R constant, also known as the gas constant, is a proportionality constant that relates the energy of a gas to its temperature. It is used in the formula for VTh to convert the units of temperature from Kelvin to Joules and to account for the number of particles in a gas.
Yes, thermal speed VTh can be measured experimentally using techniques such as gas diffusion, viscosity measurements, and particle tracking. These methods involve measuring the motion of gas particles and using the data to calculate VTh.
As temperature increases, thermal speed VTh also increases. This is because as the temperature rises, particles gain more kinetic energy and move faster. Conversely, as temperature decreases, VTh decreases as well.