Question

Calculate the amount ofheat required to convert 15 g water at 100 celcius into steam

Answer 1

Answer:

The total heat rewired is the sum of the heat in rising the temperature of the water to 100 degrees from 25 degrees and latent heat as there is a phase change from liquid to valor at 100 degrees.

Q=mC(t2-t1) + mL

C=Specific heat of water

m= mass of water

L= Latent heat

t2-t1= temperature change

Q= 2.5 × 4.814 (100–25) + 2.5*334 = 1737.63