How much heat is needed to raise the temperature of 130 g of copper from 31c to 77c ?
To calculate the amount of heat required to raise the temperature of a substance, you can use the following equation:
Q = m * c * ΔT
Where:
Q = Heat energy (in joules)
m = Mass of the substance (in grams)
c = Specific heat capacity of the substance (in joules per gram per degree Celsius)
ΔT = Change in temperature (in degrees Celsius)
In this case, we need to calculate the heat energy (Q) required to raise the temperature of 130 g of copper from 31°C to 77°C.
First, let's determine the specific heat capacity of copper. The specific heat capacity is the amount of heat energy required to raise the temperature of one gram of the substance by one degree Celsius.
The specific heat capacity of copper is approximately 0.39 joules per gram per degree Celsius.
Now, we can substitute the values into the equation:
Q = (130 g) * (0.39 J/g°C) * (77°C - 31°C)
Q = 130 g * 0.39 J/g°C * 46°C
Q = 2341.4 J
So, the amount of heat needed to raise the temperature of 130 g of copper from 31°C to 77°C is approximately 2341.4 joules.