How many calories are required to heat each of the following from 15°c to 65° in 3 gram of alminuy
To calculate the number of calories required to heat a substance, you need to use the specific heat formula:
Q = m * c * ΔT
Where:
Q = amount of heat energy (in calories)
m = mass of the substance (in grams)
c = specific heat capacity of the substance (in calories/gram °C)
ΔT = change in temperature (in °C)
For aluminum, the specific heat capacity is 0.217 calories/gram °C.
Given that the mass of the aluminum is 3 grams and the change in temperature is from 15°C to 65°C, you can now calculate the amount of heat energy:
Q = 3g * 0.217 calories/gram °C * (65°C - 15°C)
Q = 3g * 0.217 calories/gram °C * 50°C
Q = 3g * 10.85 calories
Q = 32.55 calories
Therefore, it will require approximately 32.55 calories to heat 3 grams of aluminum from 15°C to 65°C.