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.
Add Answer to:
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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Hamburgers are cooked on the grill until they reach a temperature of 175 degrees Celcius. Once cooked, they are placed on a plate to cool at room temperature, 25 degrees Celcius. If the hamburger's k value is .062, what will their temperature be (in degrees Celcius) after 10 minutes resting on the plate? Please help me solve this problem without using the formula Tf = Ta + (To - Ta )e-k * delta t If this formula is necessary, please explain...
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A coffee-cup calorimeter contains 100.0mL of 1.00M HCl at 22.4 degrees celcius. When .243g of Mg metal is added to the acid, the ensuing reaction: Mg(s) + 2 HCl (aq) --> MgCl2(aq) + H2 (g) delta Hrxn=? causes the temperature of the solution to increase to 33.4 degrees celcius. What is the value of delta Hrxn of the reaction? Assume the density of the solution is 1.01 g/ml and that its specific heat is 4.18 J/g x celcius.
at a birthday pool party, the temperature is 27.50 degrees celcius and the atmospheric pressure is...
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