Chapter 5: Q. 5.73 (page 165)

The activity of $K - 40$ in a $70 . - kg$ human body is estimated to be $120 nCi$ . What is this activity in becquerels? $(5.3)$

Short Answer

Expert verified

As a result, $K - 40' s$ activity in a $70 - k g$ human body is $4.4 \times 10^{3} Bq$

Step by step solution

Introduction

The number of nuclear disintegrations per second is used to determine a sample's activity. Curie $C i$ is a typical unit for measuring activity.

The $S l$ unit of activity is the Becquerel $B q$ .

In a $70 - k g$ human body, the activity of $K - 40$ is $120 C i$ .

Calculate $K - 40$ activity in becquerel.

The following relationships

Curie and Becquerel have the following relationships:

$1 Ci = 3.7 \times 10^{10} Bq lnCi = 37 Bq$

Therefore,

$120 nCi \times \frac{37 Bq}{1 nCi} = 4.4 \times 10^{3} Bq$

Conclusion

As a result, $K - 40' s$ activity in a $70 - K g$ human body is $4.4 \times 10^{3} Bq$ .

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The activity of $K - 40$ in a $70 . - kg$ human body is estimated to be $120 nCi$ . What is this activity in becquerels? $(5.3)$

Short Answer

Step by step solution

Introduction

The following relationships

Conclusion

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The activity of K-40in a70.-kghuman body is estimated to be 120nCi. What is this activity in becquerels?(5.3)

Short Answer

Step by step solution

Introduction

The following relationships

Conclusion

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

Chemical Reactions

Kinetics

Chemistry Branches

The Earths Atmosphere

Making Measurements

Organic Chemistry

Study anywhere. Anytime. Across all devices.

The activity of $K - 40$ in a $70 . - kg$ human body is estimated to be $120 nCi$ . What is this activity in becquerels? $(5.3)$