The specific heat of wood is 2.03 J/g∙°C. How much heat is needed to convert 550 g of wood at -15.0°C to 10.0°C?
2.03 * 550 * (10.0 - -15.0) = ? Joules
To calculate the amount of heat needed to raise the temperature of a material, such as wood, you can use the formula:
Q = m * c * ΔT
Where:
Q is the amount of heat transferred (in Joules)
m is the mass of the material (in grams)
c is the specific heat capacity of the material (in J/g∙°C)
ΔT is the change in temperature (in °C)
In this case, you want to calculate the amount of heat needed to raise the temperature of 550 g of wood from -15.0°C to 10.0°C.
First, let's calculate the change in temperature, ΔT:
ΔT = final temperature - initial temperature
ΔT = 10.0°C - (-15.0°C)
ΔT = 25.0°C
Now, substitute the values into the formula:
Q = 550 g * 2.03 J/g∙°C * 25.0°C
Q = 27887.5 J
Therefore, the amount of heat needed to convert 550 g of wood from -15.0°C to 10.0°C is 27887.5 Joules.