Advertisements
Advertisements
Question
Explain, why are the exposed water pipes lagged with straw during severe winter?
Advertisements
Solution
Water freezes at sub-zero temperature and in doing so expands (anomalous behaviour of water). So exposed water pipes during severe winter are lagged with a straw so as to provide sufficient space for the expansion of freezing water.
APPEARS IN
RELATED QUESTIONS
The amount of water vapour in air is determined in terms of its ______.
On what basis and how will you determine whether air is saturated with vapour or not?
Describe an experiment to show that water has maximum density at 4°C. What important consequences follow this peculiar property of water? Discuss the importance of this phenomenon in nature.
Draw a graph between volume and temperature, when 5 cm3 of ice at -10°C is heated to form water at +10°C.
Explain why do vegetables and fruits get damaged during severe frost?
A deep pond of water has its top layer frozen. What will be the likely temperature of water layer at the bottom of the pond?
Why does a thick glass tumbler crack when very hot water is poured in it?
