Question 6:
Give two reasons to justify−
(a) water at room temperature is a liquid.
(b) an iron almirah is a solid at room temperature.
Answer:
(a) At room temperature (25 °C), water is a liquid because it has the following characteristic of liquid:
(i) At room temperature, water has no shape but has a fixed volume that is, it occupies the shape of the container in which it is kept.
(ii) At room temperature, water flows.
(b) An iron almirah is a solid at room temperature (25 °C) because:
(i) it has a definite shape and volume like a solid at room temperature.
(ii) it is rigid as solid at room temperature.
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