Question Answers of matter in our surrounding
Q1 . How melting point of a substance indicates the strength of of its intermolecular forces of attraction Ans: More strong is the force of attraction more energy is required to break 20 forces of a fraction hence the substance which has high melting point indicates that its particles are tightly packed. Q2. Suggest a method to liquefy gases Ans: By applying pressure and reducing temperature. Q3. Define latent heat of vaporization Ans: latent heat of vaporization is defined as the heat energy required to change 1 kg of a liquid to gas at atmospheric pressure at its boiling point. Q4. Define latent heat of fusion Ans:It is defined as the heat required to change 1 kg of solid to liquid at its melting point. Q5. When a solid melts its temperature remains the same so where does the heat energy go? Ans: During the experiment of melting the temperature of the system does not change even after the melting point is reached till all the ice melts. This happens even though we contin...