how much energy is released when 10 g of steam at 100 degrees celsius is condensed and cooled to body temperature?
To calculate the amount of energy released when 10 g of steam at 100 degrees Celsius is condensed and cooled to body temperature, we need to consider the following steps:
1. Find the heat energy released during the condensation process:
When steam condenses to water, it releases the latent heat of vaporization. The latent heat of vaporization for water is approximately 2260 J/g. So, we can calculate the heat energy released during the condensation of 10 g of steam as:
Heat energy = mass × latent heat of vaporization
= 10 g × 2260 J/g
2. Determine the heat energy released during the temperature decrease:
To cool the condensed water from 100 degrees Celsius to body temperature, we need to consider the specific heat capacity of water. The specific heat capacity of water is approximately 4.18 J/g°C.
So, the heat energy released during the temperature decrease can be calculated as:
Heat energy = mass × specific heat capacity × change in temperature
= 10 g × 4.18 J/g°C × (100°C - body temperature in °C)
By calculating both the heat energies released during condensation and temperature decrease, and summing them up, you will find the total energy released in the process.
q1 = heat released condensing at 100.
q1 = mass steam x deltaHvap = ??
q2 = heat released cooling from 100 to 37 (or whatever body temperarture is).
q2 = mass x specific heat water x (Tfinal-Tinitial) = ??
qtotal = q1 + q2