The Thermal Shock Resistance, or TSR, of an item relates to its resistance to fracture when suddenly quenched from a high temperature to a lower one. Justify the expression for the TSR:
![1984_f9aa80a5-e8df-492d-bec7-eed61a0cd0ad.png](https://secure.tutorsglobe.com/CMSImages/1984_f9aa80a5-e8df-492d-bec7-eed61a0cd0ad.png)
Where k is the coefficient of thermal conductivity. Look up reasonable values for these parameters, and compare the TSR of quartz, soda-lime and borosilicate (Pyrex) glass. Explain the differences between these values on an atomistic basis.