Determine the amount of energy required to raise the temperature of 250 grams of steel from a temperature of 15 oC to a temperature of 40 oC . The specific heat of steel is 0.11 cal/gram oC.
To determine the amount of energy required to raise the temperature of a substance, you can use the formula:
Q = m * c * ΔT
Where:
Q is the amount of energy required,
m is the mass of the substance,
c is the specific heat of the substance,
ΔT is the change in temperature.
In this case, the mass of the steel is 250 grams, the specific heat is 0.11 cal/gram oC, and the change in temperature is 40 oC - 15 oC = 25 oC.
Now we can substitute the values into the formula:
Q = 250g * 0.11 cal/g oC * 25 oC
Q = 687.5 cal
Therefore, the amount of energy required to raise the temperature of 250 grams of steel from 15 oC to 40 oC is 687.5 calories.
To determine the amount of energy required to raise the temperature of a substance, we can use the formula:
Q = m * c * ΔT
Where:
Q is the amount of energy (in calories)
m is the mass of the substance (in grams)
c is the specific heat capacity of the substance (in cal/gram °C)
ΔT is the change in temperature (in °C)
In your case:
m = 250 grams
c = 0.11 cal/gram oC
ΔT = (40 oC - 15 oC) = 25 oC
Substituting the values into the formula, we get:
Q = 250 grams * 0.11 cal/gram oC * 25 oC
Calculating this, we have:
Q = 687.5 calories
Therefore, the amount of energy required to raise the temperature of 250 grams of steel from 15 oC to 40 oC is 687.5 calories.