No. It can be but need not be. For example, you might calculate the ratio of today's temperature in Celsius and in Fahrenheit and calculate the ratio. That is not a rate.
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The higher the ratio, the faster the rate of diffusion
The second term in the ratio is 1.
Yes.
yes because a ratio is a rate so a rate would have to be a ratio
No. It can be but need not be. For example, you might calculate the ratio of today's temperature in Celsius and in Fahrenheit and calculate the ratio. That is not a rate.
A percent is a ratio, or rate, that compares a number to100
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The higher the ratio, the faster the rate of diffusion
The surface area to volume ratio of a cell affects the rate of diffusion in that the higher the ratio, the faster the rate of diffusion. This is a directly proportional relationship.
A unit rate is a ratio: it does not have a solution!
The second term in the ratio is 1.
When the second element of the ratio is 1.
the ratio of the distillate mass flow rate to the mass flow rate of the steam used
YES
Yes.