Question

2. 10.0 g of steam at 120.0 °C are converted into ice at -20.0°C.

a) Make a graph to indicate this change.

b) Calculate the total energy released (J) needed to do the problem above.

Answer 1

Part 2a

Part2b

Specific heat capacity of Ice $=2.093J/g/K$

Specific heat capacity of water $=4.184J/g/K$

Latent heat of fusion of Ice $=334J/g$

Latent heat of vaporization of water

$2260J/g$

Specific heat capacity of steam

$1.996J/g/K$

Total energy released

$=10[1.996×20+2260+4.184×100+334+2.093×20]$

$=3.094×10^4J$