Sustainable Energy, Si Edition
2nd Edition
ISBN: 9781337551670
Author: DUNLAP, Richard A.
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 5, Problem 11P
The measured decay rates of a radioactive material as a function of time are shown in the table below.
- (a) Calculate the half-life of the decay.
- (b) Show that a semilogarithmic plot of the decay rate as a function of time is linear.
- (c) Derive an analytical form of the linear relationship for part (b).
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Q1// In an attempt to understand the mechanism of the depolarization process in a fuel cell, an
electro-kinetic model for mixed oxygen-methanol current on platinum was developed in the
laboratory at FAMU. A very simplified model of the reaction developed suggests a functional
relation in an integral form. To find the time required for 50% of the oxygen to be consumed, the
time, T is given by:
-3.5
6.87X
T = G
-)dx
√X² +4
Use Simpson's 3/8 multiple segment rule with 6 segments to find the time required for 50% of the
oxygen to be consumed.
The half-life of cesium-137 is 30 years. Suppose we have a 60-mg sample.
(a) Find the mass that remains after t years.y(t) =
(b) How much of the sample remains after 60 years? (Round your answer to two decimal places.) (c) After how long will only 1 mg remain? (Round your answer to one decimal place.)t =
The kinetics of the austenite-to-pearlite transformation
obey the Avrami relationship. The fraction transformed-
time data is given below.
Fraction Transformed
Time (s)
0.2
12.6
0.8
28.2
Determine the total time required for
98% of the austenite to transform to
pearlite:
Write up to 2 DECIMAL PLACES
Determine the transformation rate
(per minute).
Write up to 4 DECIMAL PLACES. Example:
0.0123
Chapter 5 Solutions
Sustainable Energy, Si Edition
Ch. 5 - Prob. 1PCh. 5 - Prob. 2PCh. 5 - A sample of 137Cs (half-life = 30.1 years) decays...Ch. 5 - Prob. 4PCh. 5 - What are the decay products of the decay of the...Ch. 5 - Prob. 6PCh. 5 - Nuclide A has a half-life of 4 days, and nuclide B...Ch. 5 - 64Cu can decay by both decay and + decay. Draw an...Ch. 5 - At time t = 0 a sample contains 3.57 108 nuclei...Ch. 5 - Prob. 10P
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- An elementary particle produced in a laboratory experiment travels 0.319 mm through the lab at a relative speed of 0.953c before it decays (becomes another particle). (a) What is the proper lifetime of the particle? (b) What is the distance the lab travels as measured from the particle's rest frame? (a) Number i Units (b) Number i Unitsarrow_forwardSubject is environmental engineeringarrow_forwardGiven the lattice shown below, calculate the alpha angle shown in the drawing and the size of the BG element.arrow_forward
- 25 Material Science and Engineeringarrow_forwardlen1arrow_forwardExplain which kind of microstructures you expect to observe at room temperature if an iron-carbon alloy of eutectoid composition is cooled down following the red and blue curves. 800 727° 700 Coarse pearlite 600 a+ FeC Fine pearlite 500 y+ a+ Fe,C 400 Bainite 300 M5- 200 so - Mo 100 1 sec 1 min 1 hour 1 day 102 103 104 105 0.1 10 Time, secondsarrow_forward
- State if the following statements are True or False. Edit the False statement with an appropriate statementa. ( ) To check the charge neutrality, we can compare the sum of the molar concentrations of cations and anions.b. ( ) The indicator microorganism for contamination of drinking water is Cryptosporidium parvusarrow_forwardTwo similar round bars A and B are each 30 cm long as shown in the given figure. The ratio of the UB energies stored by the bars A and B, is UA 12 cm- |2 cm- EL4 cm 4cm A 20 cm 10 cm| 10 cm 20 cmarrow_forwardA sample of 137Cs (half-life = 30.1 years) decays at a rate of 1010 decays per second. How long will it take the decay rate to decrease to 107 decays per second?arrow_forward
- 1. Locate the center of the mass of the four particles. m Im m Skg 4 marrow_forwardI need some helparrow_forward(a) What is the physical significance of energy of activation ? Explain with diagram.(b) In general, it is observed that the rate of a chemical reaction doubles with every 10 degree rise in temperature. If the generalization holds good for the reaction in the temperature range of 295 K to 305 K, what would be the value of activation energy for this reaction ?[R = 8.314 J mol-1 K-1]arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Materials Science And Engineering PropertiesCivil EngineeringISBN:9781111988609Author:Charles GilmorePublisher:Cengage Learning
Materials Science And Engineering Properties
Civil Engineering
ISBN:9781111988609
Author:Charles Gilmore
Publisher:Cengage Learning
The Science Inside Concrete Binders; Author: Dow;https://www.youtube.com/watch?v=GZq3Cyn2mVE;License: Standard Youtube License