Chapter 31, Problem 9Q

To determine

Why the porous block of uranium is more likely to be exploded than it kept it in air?

Answer to Problem 9Q

Solution:

Due to the presence of slow neutrons in water, the porous block of uranium is more likely to be exploded in water than in air.

Explanation of Solution

In water, the number of protons and neutrons are more when it is compared to that of air. So, the slow neutrons may get absorbed by the porous uranium and it will trigger a chain reaction. Therefore, the chance of explosion is higher.