Advertisements
Advertisements
प्रश्न
Why does a hot glass chimney often crack when a drop of waterfalls on it?
टिप्पणी लिखिए
Advertisements
उत्तर
A hot glass chimney often crack when a drop of water falls on it because the glass of the chimney expands due to constant heating by the flame of the chimney but as a cooler water drop falls on the glass, the outer surface contracts more than the inner side of the glass. This unequal contraction between the two surfaces causes a strain and the glass cracks.
shaalaa.com
Anomalous Expansion of Water
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Give reasons:
Water pipes burst in severe winters.
Explain the following:
In cold regions in winter, the rocks crack due to anomalous expansion of water.
Water is cooled from 4 °C to 0 °C. It will :
Explain, why are soft drink bottles not completely filled?
Explain, why are the exposed water pipes lagged with straw during severe winter?
A deep pond of water has its top layer frozen. What will be the likely temperature of water layer just in contact with ice?
In cold countries, the water pipes are covered with poor conductors. Why?
How will you demonstrate thermal expansion in liquids? Describe an experiment.
What is the usual range of temperature marked on a clinical thermometer?
Match the columns:
| Column ‘A’ | Column ‘B’ |
| The density of water is maximum at | (a) 0°C |
| (b) 4°C | |
| (c) 100°C |
