Two objects have been heated until they glow. They appear to be different colors. Is it possible that they have the same tempera
1 answer:
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Answer: radon (atomic mass 222 amu
Explanation:
To calculate the rate of diffusion of gas, we use Graham's Law.
This law states that the rate of effusion or diffusion of gas is inversely proportional to the square root of the molar mass of the gas. The equation given by this law follows:
atomic mass of krypton= 83.8 amu
atomic mass of argon= 39.95 amu
atomic mass of xenon = 131.3 amu
atomic mass of radon= 222 amu
Thus as atomic mass of radon is highest, its rate of diffusion is slowest.
<u>Answer:</u>
<em>The percentage error in the measurement is 2.4% </em>
<u>Explanation:</u>
The measurement made by the student is .
But the actual value of density is
The formula to calculate percentage error is
percentage error =
Hence percentage error in this case is given by
<em>Percentage error =
</em>
<em>=
</em>
A physical quantities value will be determines by various quantities. If errors are made in measuring any of these quantities there will be error in the measurement of the final physical quantity as well.
Here density of a substance is a derived quantity determined by measuring mass and volume of that substance.<em> If errors are made in mass and volume measurements the density value will also be erroneous. </em>