Question
Question: A piece of glass is heated to a high temperature and then allowed to cool. If it cracks, a probable ...
A piece of glass is heated to a high temperature and then allowed to cool. If it cracks, a probable reason for this is the following property of glass
A
Low thermal conductivity
B
High thermal conductivity
C
High specific heat
D
High melting point
Answer
Low thermal conductivity
Explanation
Solution
When a piece of glass is heated, due to low thermal conductivity it does not conduct heat fast. Hence unequal expansion of it’s layers crack the glass.