Question

Identify the type of change in above process.

• A. Physical change
• B. Chemical change
• C. Both physical and chemical changes
• D. None of these

Answer 1

Answer: (A)

Physical change

Ice, liquid water and steam are three different states of water, all these are interchangeable depending on the temperature. If ice is heated it changes to liquid water, the process is called melting. If this is cooled back at $0^{0}C$ ice is formed again, the process is called freezing. liquid water when heated at its boiling point i.e $100{}^{0}C$ turns into steam, the process is called boiling. This steam cools back to the water, the process is called condensation. All of these are physical changes.

Hence, the correct option is $\left(A\right)$