Question

Raju observed the breaking of glass bottle which is filled completely with water with lid fitted tight
and kept in refrigerator for few hours. The reason for breaking is
[ ]
A) Glass bottle breaks due to the fall in temperature.
B) The volume is increased when water converted into ice.
C) The glass breaks at low temperatures
D) The volume decreased when converted into ice.​

Answer 1

Answer:

B) due to increase in volume

Explanation:

As water converts into ice, volume inc due to air trapped in and making air pockets in ice.

Answer 2

Answer:

The reason for the glass to break is that the volume increases when water is converted into ice i.e, option(B).

Explanation:

• We know that the water freezing point is 0° Celcius.
• But the water converts into ice at 4° Celcius.
• The refrigerator temperature is supposed to be at or below 40° F or 4° Celcius.
• When water starts freezing it releases a lot of energy which is known as enthalpy of fusion.
• This happens as the water molecules arrange themselves from liquid form to solid form.
• Also 4° Celcius is the temperature at which the density of the liquid water is highest.

• When we cool any other liquid then it contracts but the cooling of water is different as it expands.

• At this temperature, if we heat it or cool it, then the water expands.

When the water is freezing after tightly fitting the lid, its volume increases and since it's tightly closed it cannot expand, and thus the glass breaks.