Question

Calculate the amount of heat, in calories, that must be added to warm 89.7 g

of wood (0.10) from 22.0 °C
to 44.1 °C.
Assume no changes in state occur during this change in temperature.

Answer 1

To calculate the amount of heat required to warm the wood, we can use the formula:

Q = mcΔT

Where:
Q = amount of heat
m = mass of the wood
c = specific heat of the wood
ΔT = change in temperature

First, we need to calculate the specific heat of the wood. According to Engineering Toolbox, the specific heat of dry wood ranges from 1.2 to 2.5 cal/g °C. Let's use the average value of 1.85 cal/g °C.

Q = (89.7 g)(1.85 cal/g °C)(44.1 °C - 22.0 °C)
Q = 3,837.3 cal

Therefore, the amount of heat required to warm 89.7 g of wood from 22.0 °C to 44.1 °C is approximately 3,837.3 calories.