WBCS.LIVE practice question

Pure water freezes at a temperature-

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. 47 °F
  2. 32 °F
  3. 0 °F
  4. 19 °F

Correct answer and explanation

Correct answer: 32 °F

Explanation: Pure water freezes at 32°F, which equals 0°C. 📚 Other Information: ▪️ The freezing point of water is a standard reference in temperature scales. ▪️ On the Celsius scale, water freezes at 0°C and boils at 100°C. ▪️ On the Fahrenheit scale, it freezes at 32°F and boils at 212°F. ▪️ At freezing point, water converts from liquid to solid (ice). ▪️ The freezing process involves release of latent heat of fusion. ▪️ Impurities like salts lower the freezing point, a process called freezing point depression. ▪️ This principle is used in antifreeze solutions for car engines. ▪️ Daniel Gabriel Fahrenheit (1724) developed the Fahrenheit scale.