Ch.19 - Nuclear ChemistryWorksheetSee all chapters
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Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: When a positron and an electron annihilate one another, the resulting mass is completely converted to energy.Calculate the energy associated with this process in kJ/mol.

Solution: When a positron and an electron annihilate one another, the resulting mass is completely converted to energy.Calculate the energy associated with this process in kJ/mol.

Problem

When a positron and an electron annihilate one another, the resulting mass is completely converted to energy.

Calculate the energy associated with this process in kJ/mol.

Solution

We’re being asked to calculate the energy released for the reaction of a positron and an electron :

e+10+e-102 00γ


To calculate the energy released for the reaction, we’re going to use the following steps:

Step 1: Calculate the mass defect (Δm).
Step 2: Calculate the mass defect (Δm) in kg.
Step 3: Calculate the energy released (E).


Step 1: Calculate the mass defect (Δm).

Given:

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