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U-238 atoms is 0.66. Assume all of the Pb-206 present is due to the decay of U-238. What is -kt the age of the rock? C=Co e +693 -693 -10 Ty2= K= = 1.54 X10

U-238 atoms is 0.66. Assume all of the Pb-206 present is due to the decay of U-238. What is -kt the age of the rock? C=Co e +693 -693 -10 Ty2= K= = 1.54 X10

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Question 2 (20 pts) The decay of U-238 to Pb-206 can be used to estimate the age of inorganic matter. The half-life of U-238 is 4.5 X 10 years. In a particular rock sample, the ratio of the numbers of Pb-206 to U-238 atoms is 0.66. Assume all of the Pb-206 present is due to the decay of U-238. What is the age of the rock? -kt .693 -10 C=Coe Ty2: .693 K K= = 1.54 X10 4.5 410
Transcribed Image Text:Question 2 (20 pts) The decay of U-238 to Pb-206 can be used to estimate the age of inorganic matter. The half-life of U-238 is 4.5 X 10 years. In a particular rock sample, the ratio of the numbers of Pb-206 to U-238 atoms is 0.66. Assume all of the Pb-206 present is due to the decay of U-238. What is the age of the rock? -kt .693 -10 C=Coe Ty2: .693 K K= = 1.54 X10 4.5 410
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