During the research that led to production of the two atomic bombs used against Japan in World War II, different mechanisms for obtaining a supercritical mass of fissionable material were investigated. In one type of bomb, what is essentially a gun was used to shoot one piece of fissionable material into a cavity containing another piece of fissionable material. In the second type of bomb, the fissionable material was surrounded with a high explosive that, when detonated, compressed the fissionable material into a smaller volume. Discuss what is meant by critical mass, and explain why the ability to achieve a critical mass is essential to sustaining a nuclear reaction.
Course Name: Dr. Gorden CHEM 1040 - 005 TR 8-9:15 - 5 Course Code: PHT6X-K3KWG ALEKS Course: General Chemistry (Second Semester) Instructor: Dr. Gorden Course Dates: Begin: 01/13/2016 End: 05/04/2016 Course Content: 128 topics Textbook: Burdge et al.: Chemistry: Atoms First, 2nd Ed. (McGraw-Hill) - ALEKS 360 Dates Objective 01/14/2016 01/20/2016 - 1. Objective #1 (12 topics) 12:01 AM 11:59 PM 01/20/2016 - 01/27/2016 2. Objective #2 (8 topics) 11:59 PM 11:59 PM 01/27/2016 - 02/10/2016 3. Objective #3 (12 topics) 11:59 PM 11:59 PM 02/10/201