Answer :
The specific heat of aluminum he has measured is 0.89 J/g°C.
The specific heat of a material is the amount of heat energy required to raise one unit mass of a substance by one degree Celsius.
The specific heat of a material is a measure of its ability to absorb and retain thermal energy. It's expressed in joules per kilogram per degree Celsius (J/kg°C).
Now let's calculate the specific heat of aluminum:
Formula:
Specific Heat = [Total Heat Energy (J)] / [Mass (g) x Temperature Change (°C)]
The given values are:
Total Heat Energy = 189 joules
Mass = 14.9 grams
Temperature Change = (39.3 - 24.4)°C = 14.9°C
Substitute these values in the above formula:
Specific Heat = [Total Heat Energy (J)] / [Mass (g) x Temperature Change (°C)]
Specific Heat = 189 / (14.9 x 14.9) = 0.89 J/g°C
Therefore, the specific heat of aluminum is 0.89 J/g°C.
To know more about Specific Heat, refer here:
https://brainly.com/question/29766819#
#SPJ11
