/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q24.65 P A small region of a cancer patie... [FREE SOLUTION] | 91影视

91影视

Find study content
Learning Materials

Discover learning materials by subject, university or textbook.

Explanations

Textbooks
All Subjects

Anthropology

Archaeology

Architecture

Art and Design

Bengali

Biology

Business Studies

Greek

Chemistry

Chinese

Combined Science

Computer Science

Economics

Engineering

English

English Literature

Environmental Science

French

Geography

German

History

Hospitality and Tourism

Human Geography

Italian

Japanese

Law

Macroeconomics

Marketing

Math

Media Studies

Medicine

Microeconomics

Music

Nursing

Nutrition and Food Science

Physics

Polish

Politics

Psychology

Religious Studies

Sociology

Spanish

Sports Sciences

Translation

All Subjects

Biology

Business Studies

Chemistry

Combined Science

Computer Science

Economics

English

Environmental Science

Geography

History

Math

Physics

Psychology

Sociology
Features
Features

Discover all of these amazing features with a free account.

Flashcards

91影视 AI

Notes

Study Plans

Study Sets
What鈥檚 new?

Flashcards
Study your flashcards with three learning modes.

Study Sets
All of your learning materials stored in one place.

Notes
Create and edit notes or documents.

Study Plans
Organise your studies and prepare for exams.
91影视
Discover

All the hacks around your studies and career - in one place.

Find a degree

Magazine
Featured

Magazine
Trusted advice for anyone who wants to ace their studies & career.

The largest student job board with the most exciting opportunities.

Verified student deals from top brands.

Discover our mobile app to take your studies anywhere.

Learning Materials

Features

Discover

Chapter 24: Q24.65 P (page 1104)

A small region of a cancer patient鈥檚 brain is exposed for 24.0 min to 475 Bq of radioactivity from60Co for treatment of a tumor. If the brain mass exposed is $1.858$ g and each particle emitted has an energy of ${5.05脳10}^{-14} J$ , what is the dose in rads

Short Answer

Expert verified

The dose in rads is_{${1.86脳10}^{-3} rad$}

Step by step solution

01

The give data

-_{$1rad=0.01J/kg$}

- The mass of exposed part of the brain is ${1.858驳=1.858脳10}^{-3} kg$

- A brain is exposed to ${475Bqfrom}^{60} Co(1Bq=1d/s)$

- The duration of exposure is $24 min$

- Energy of each disintegration is_{$5.05 脳 10^{鈭� 14} J$}

02

Calculation

We have to calculate the dose in rads.

First, let us calculate the number of disintegrations per second

_{$础=475叠辩脳 \frac{1d/s}{1Bq} =475d/s$}

Now, let us calculate the number of disintegrations in $24 min$

_{$\begin{matrix} Noofdin20min=475 \frac{d}{s} 脳 \frac{60s}{1min} 脳24尘颈苍 \\ {=6.84脳10}^{5} d \end{matrix}$}

Total number of that the brain receives in 20 minutes is

_{$\begin{matrix} {狈辞辞蹿闯=6.84脳10}^{5} {诲脳5.05脳10}^{-14} J/d \\ {=3.454脳10}^{-8} J \end{matrix}$}

Therefore, the dose in rads is

_{$\begin{matrix} Doseinrads= \frac{{3.454脳10}^{-8} J}{{1.858脳10}^{-3} kg} 脳 \frac{1rad}{0.01J/kg} \\ {=1.86脳10}^{-3} rad \end{matrix}$}

Hence, the dose in rads is ${1.86脳10}^{-3} rad$

Unlock Step-by-Step Solutions & Ace Your Exams!

Full Textbook Solutions
Get detailed explanations and key concepts
Unlimited Al creation
Al flashcards, explanations, exams and more...
Ads-free access
To over 500 millions flashcards
Money-back guarantee
We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

What is the nuclear binding energy of a lithium-7nucleus in units of kJ/mol and eV/nucleus? (Mass of a lithium-7atom =7.016003amu.)

Question:In a natural decay series, how many $伪$ and $尾^{-}$ emissions per atom of uranium-235 result in an atom of lead-207?

The reaction that will probably power the first commercial fusion reactor is

${}_{1}^{3}{H +}_{1}^{2} H {鈫�}_{2}^{4} {He +}_{0}^{1} n$

How much energy would be produced per mole of reaction?

(Masses of atoms: ${}_{1}^{3}{H = 3.01605amu;}_{1}^{2} H = 2.0140amu$ ;

${}_{2}^{4}{He = 4.00260amu;mass of}_{0}^{1} n = 1.008665amu$ .)

The rd-century starship Enterprise uses a substance called 鈥渄ilithium crystals鈥� as its fuel.

(a) Assuming this material is the result of fusion, what is the product of the fusion of two ${}^{6}L i$ nuclei ?

(b) How much energy is released per kilogram of dilithium formed? (Mass of one ${}^{6}L i$ atom is 6.01512 amu.)

(c) When four ${}^{1}H$ atoms fuse to form ${}^{4}H e$ , how many positrons are released?

(d) To determine the energy potential of the fusion processes in parts (b) and (c), compare the changes in mass per kilogram of dilithium and of .

(e) Compare the change in mass per kilogram in part (b) to that for the formation of ${}^{4}H e$ by the method used in current fusion reactors

(f) Using early st-century fusion technology, how much tritium can be produced per kilogram of ${}^{6}L i$ in the following reaction: ${}_{3}^{6}L i +_{0}^{1} n {鈫�}_{2}^{4} H e +_{1}^{3} H$ ? When this amount of tritium is fused with deuterium, what is the change in mass? How does this quantity compare with the use of dilithium in part (b)?

What is a cation-electron pair, and how does it form?

See all solutions

Recommended explanations on Chemistry Textbooks

Nuclear Chemistry

Read Explanation

Making Measurements

Read Explanation

Ionic and Molecular Compounds

Read Explanation

Inorganic Chemistry

Read Explanation

Chemical Reactions

Read Explanation

Kinetics

Read Explanation

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.