Question

gy 5. The process of change of liquid into gas at any temperature, (e) Combustion 4 STUDY QUESTIONS 1. (a) Define heat energy and its units. (b) Name four effects which the heat energy can bring about in a material body. 2. What do you understand by the term "change of state"? 3. Define the following: (a) Fusion (b) Fusion point (c) Solidification (d) Solidification point 4. (a) How do the fusion point and solidification point of ice and water compare numerically? (b) Describe different sources of heat energy. 5. Define the following: (a) Vaporisation (b) Vaporisation point (c) Condensation (d) Condensation point 6. How do the vaporisation point of water and condensation point of steam compare numerically? 7. (a) What is evaporation? (b) Give two differences between vaporisation and evaporation 8. (a) What do you understand by the term sublimation? (b) Give two examples of the substances which sublime. 9. Give two examples to prove that heat energy brings about a chemical change. 10. By giving four examples each, define (a) Flammable substances, (b) Non-flammable substances, teo al 75​

Answer 1

Answer:

Are baap re itna padhenge toh iss se aacha toh exam ki taiyari hi kr le hum