The specific heat of copper is .4 joules/gram degrees Celsius. How much heat is needed to change the temperature of a 30 gram sample of copper from 20 degrees to 60 degrees?
I just need to know how to set up the problem and solve it.
Answer?
q = mass x specific heat x delta T.
To solve this problem, you can use the formula:
q = m * c * ΔT
Where:
q is the heat (in Joules)
m is the mass of the substance (in grams)
c is the specific heat of the substance (in J/g°C)
ΔT is the change in temperature (in degrees Celsius)
In this case, the mass of the sample is 30 grams, the specific heat of copper is 0.4 J/g°C, and the change in temperature is 60 - 20 = 40 degrees Celsius.
Plugging these values into the formula, we can calculate the heat required:
q = 30 g * 0.4 J/g°C * 40°C
Now we can solve this equation:
q = 30 g * 0.4 J/g°C * 40°C = 480 J
Therefore, the amount of heat needed to change the temperature of the 30-gram sample of copper from 20 degrees to 60 degrees is 480 Joules.
To solve this problem, you need to use the formula for heat transfer:
Q = m * c * ΔT
Where:
Q is the heat transfer
m is the mass of the substance
c is the specific heat of the substance
ΔT is the change in temperature
First, let's identify the given values:
m = 30 grams (mass of the copper sample)
c = 0.4 Joules/gram degrees Celsius (specific heat of copper)
ΔT = 60 degrees Celsius - 20 degrees Celsius = 40 degrees Celsius (change in temperature)
Now, substitute the values into the formula and calculate the heat transfer:
Q = (30 grams) * (0.4 Joules/gram degrees Celsius) * (40 degrees Celsius)
To simplify the calculation, we can cancel out the units:
Q = 30 grams * 0.4 Joules/gram * 40 degrees Celsius
Now, multiply the values:
Q = 30 * 0.4 * 40 = 480 Joules
Therefore, the heat needed to change the temperature of a 30 gram sample of copper from 20 degrees to 60 degrees is 480 Joules.