Yijia's answer to KANARAM SAINI's Junior College 1 H2 Maths India question.
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When water freezes, it form a lattice like structure due to its hydrogen bond. Such that there empty spaces in between the molecules. Therefore, increasing the volume. Density = mass / volume. Higher volume = lower density. Therefore ice floats. Hence when ice melts, it's volume decreases.
Date Posted:
5 years ago
From 0 deg C to 4 deg C, density of water increases. Hence, volume of water decreases.
However, above 4 deg C, water behaves just like any other material; it expands. Hence, volume of water increases.
*This is how frozen lake surface formed with fishes still able to swim (alive) below the frozen ice in water of temp. of around 4 deg C.
ans: D
However, above 4 deg C, water behaves just like any other material; it expands. Hence, volume of water increases.
*This is how frozen lake surface formed with fishes still able to swim (alive) below the frozen ice in water of temp. of around 4 deg C.
ans: D
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