Pre Activity: When a metal is heated it expands, why does this happen? A model of atomic bonding: The symmetric spring potential vs. the real asymmetric potential. Activity I: Understanding the graphs For points A, C, and D draw pictures representing the two atoms and their atomic separations. A C D For the points A-E which points are allowed when the system has total energy EN? Give an explanation for why points would be allowed or not allowed. What is the average atomic separation in the spring model case? (Greater than, less than, or equal to r0?) What is the average atomic separation in the "atomic bond" case?(Greater than, less than, or equal to r0?) What happens to the average separation for the spring model and atomic bond model when the total energy increases?
Pre Activity: When a metal is heated it expands, why does this happen? A model of atomic bonding: The symmetric spring potential vs. the real asymmetric potential. Activity I: Understanding the graphs For points A, C, and D draw pictures representing the two atoms and their atomic separations. A C D For the points A-E which points are allowed when the system has total energy EN? Give an explanation for why points would be allowed or not allowed. What is the average atomic separation in the spring model case? (Greater than, less than, or equal to r0?) What is the average atomic separation in the "atomic bond" case?(Greater than, less than, or equal to r0?) What happens to the average separation for the spring model and atomic bond model when the total energy increases?