What amount of heat is required to raise the temperature of 350 grams of copper to cause a 25°C change? The specific heat of copper is 0.39 J/g°C
A. 2500 joules
B. 2600 joules
C. 3400 joules
D. 3900 joules
3400
To calculate the amount of heat required, we can use the formula:
Q = m * c * ΔT
Where:
Q = heat energy in joules
m = mass of the substance in grams
c = specific heat of the substance in J/g°C
ΔT = change in temperature in °C
Given:
m = 350 grams
c = 0.39 J/g°C
ΔT = 25°C
Plugging the values into the formula, we get:
Q = 350 * 0.39 * 25
Q = 3412.5 joules
Therefore, the amount of heat required is approximately 3413 joules.
The closest answer to this value is option C. 3400 joules.
To calculate the amount of heat required to raise the temperature of a substance, you can use the formula:
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 J/g°C)
ΔT = change in temperature (in °C)
In this case, we have:
m = 350 grams
c = 0.39 J/g°C
ΔT = 25°C
Substituting these values into the formula, we get:
Q = 350 grams * 0.39 J/g°C * 25°C
Now let's solve the equation:
Q = 350 * 0.39 * 25
Q = 3412.5 joules
So, the amount of heat required to raise the temperature of 350 grams of copper by 25°C is approximately 3412.5 joules. Therefore, the answer is:
C. 3400 joules