What is the amount of heat entering your skin when it receives the heat released by 26.4 g of steam initially at 100 degrees celsius that cools to 34.3 degrees celsius?
There will be a heat release of 540 cal/gm due to condensation and another 65.7 calories/gram due to cooling.
26.4 g x (605.7 cal/g) = ___ cal
To calculate the amount of heat entering your skin, we can use the heat transfer equation:
Q = m * c * ΔT
where:
Q is the amount of heat transferred
m is the mass of the substance
c is the specific heat capacity of the substance
ΔT is the change in temperature
In this case, the steam is releasing heat to your skin, so the heat transfer will be negative. Let's calculate step by step:
1. Calculate the change in temperature (ΔT):
ΔT = final temperature - initial temperature
= 34.3°C - 100°C
= -65.7°C
Note that since the temperature is decreasing, the value is negative.
2. Calculate the mass of the steam (m):
Given: 26.4 g
3. Calculate the specific heat capacity of steam (c):
The specific heat capacity of water is approximately 4.18 J/g°C.
4. Calculate the amount of heat transferred (Q):
Q = m * c * ΔT
= 26.4 g * 4.18 J/g°C * -65.7°C
Calculating this value will give you the amount of heat entering your skin when it receives the heat released by the steam.