Real-world examples of phase changes include:

1. Melting of Ice:

   • When ice melts, it takes in energy.
   • This energy is about 334 Joules for every gram.

2. Boiling of Water:

   • When water boils, it also absorbs energy.
   • This time, it's around 2260 Joules for each gram.

3. Condensation of Steam:

   • When steam turns back into water, it releases energy.
   • It gives off about 2260 Joules for each gram.

4. Sublimation of Dry Ice (Solid CO2):

   • When dry ice turns directly into gas, it absorbs energy.
   • This process takes about 573 Joules for every gram.

These examples show how energy moves around when things change from one state to another.