
World of Chemistry
7th Edition
ISBN: 9780618562763
Author: Steven S. Zumdahl
Publisher: Houghton Mifflin College Div
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Question
Chapter 19, Problem 51A
Interpretation Introduction
Interpretation:
The source of radiation to which humans are exposed naturally is to be discussed and compared with acceptable level of exposure.
Concept introduction:
The radiations are measured in unit rem.
Expert Solution & Answer

Answer to Problem 51A
Source of radiations to which human is exposed naturally:
- Cosmic rays
- Earth
- Building material
- Human tissues
- Inhalation of air
The tolerable exposure is 198 rem in a year.
Explanation of Solution
Source of radiations to which human is exposed naturally with its value is:
Source | Exposure (millirems/year) |
Cosmic rays | 50 |
Earth | 47 |
Building material | 3 |
Human tissues | 21 |
Inhalation of air | 5 |
Total | 126 |
The dose of radiation which is non-detectable lies in range 0-25 rems
Total exposure comparison=
=198
Conclusion
Source of radiations to which human is exposed naturally are Cosmic rays, Earth, Building material, Human tissues, Inhalation of air. These cause 126 millirems/year exposure to humans.
And the tolerable exposure is 198 rem in a year.
Chapter 19 Solutions
World of Chemistry
Ch. 19.1 - Prob. 1RQCh. 19.1 - Prob. 2RQCh. 19.1 - Prob. 3RQCh. 19.1 - Prob. 4RQCh. 19.1 - Prob. 5RQCh. 19.1 - Prob. 6RQCh. 19.2 - Prob. 1RQCh. 19.2 - Prob. 2RQCh. 19.2 - Prob. 3RQCh. 19.2 - Prob. 4RQ
Ch. 19.3 - Prob. 1RQCh. 19.3 - Prob. 2RQCh. 19.3 - Prob. 3RQCh. 19.3 - Prob. 4RQCh. 19.3 - Prob. 5RQCh. 19.3 - Prob. 6RQCh. 19 - Prob. 1ACh. 19 - Prob. 2ACh. 19 - Prob. 3ACh. 19 - Prob. 4ACh. 19 - Prob. 5ACh. 19 - Prob. 6ACh. 19 - Prob. 7ACh. 19 - Prob. 8ACh. 19 - Prob. 9ACh. 19 - Prob. 10ACh. 19 - Prob. 11ACh. 19 - Prob. 12ACh. 19 - Prob. 13ACh. 19 - Prob. 14ACh. 19 - Prob. 15ACh. 19 - Prob. 16ACh. 19 - Prob. 17ACh. 19 - Prob. 18ACh. 19 - Prob. 19ACh. 19 - Prob. 20ACh. 19 - Prob. 21ACh. 19 - Prob. 22ACh. 19 - Prob. 23ACh. 19 - Prob. 24ACh. 19 - Prob. 25ACh. 19 - Prob. 26ACh. 19 - Prob. 27ACh. 19 - Prob. 28ACh. 19 - Prob. 29ACh. 19 - Prob. 30ACh. 19 - Prob. 31ACh. 19 - Prob. 32ACh. 19 - Prob. 33ACh. 19 - Prob. 34ACh. 19 - Prob. 35ACh. 19 - Prob. 36ACh. 19 - Prob. 37ACh. 19 - Prob. 38ACh. 19 - Prob. 39ACh. 19 - Prob. 40ACh. 19 - Prob. 41ACh. 19 - Prob. 42ACh. 19 - Prob. 43ACh. 19 - Prob. 44ACh. 19 - Prob. 45ACh. 19 - Prob. 46ACh. 19 - Prob. 47ACh. 19 - Prob. 48ACh. 19 - Prob. 49ACh. 19 - Prob. 50ACh. 19 - Prob. 51ACh. 19 - Prob. 52ACh. 19 - Prob. 53ACh. 19 - Prob. 54ACh. 19 - Prob. 55ACh. 19 - Prob. 56ACh. 19 - Prob. 57ACh. 19 - Prob. 1STPCh. 19 - Prob. 2STPCh. 19 - Prob. 3STPCh. 19 - Prob. 4STPCh. 19 - Prob. 5STPCh. 19 - Prob. 6STPCh. 19 - Prob. 7STPCh. 19 - Prob. 8STPCh. 19 - Prob. 9STPCh. 19 - Prob. 10STPCh. 19 - Prob. 11STPCh. 19 - Prob. 12STP
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