The temperature of an aluminum disk is increased by 240 degrees celcius. By what percentage does...
delta V/V = __________%
Homework Answers
The concept which is used to solve the problem is Thermal expansion.
Initially, write the expression for volume change of a substance on heating. Later, rearrange the equation for fraction change in volume. Finally, solve for the percentage increase in volume of the disk on heating.
The expression for the volume expansion or change in volume (
) of a substance on heating is,
Here, 
is the coefficient of volume expansion, 
is the initial volume of the substance, and 
is the change in temperature.
Expression for the volume expansion or change in volume is,
Rewrite the equation for 
to calculate the increase in volume.
The percentage increase in the volume of the disk is,
Substitute 
for and 
for .
Therefore, the percentage increase in the volume of the disk is
.
Therefore, the percentage increase in the volume of the disk is.
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The temperature of an aluminum disk is increased by 240 degrees
celcius. By what percentage does...
The temperature of an aluminum disk is increased by 220 ∘C. By what percentage does its...
The temperature of an aluminum disk is increased by 220 ∘C. By what percentage does its volume increase?
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An aluminum pendulum that is 2m long at 30 degrees Celcius has a period of 2.83845 seconds. If the period is increased by 0.04% what is the temperature of the aluminum pendulum?
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kelvins
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