In the einstein model, a solid containing n atoms is represented by a set of 3n identical but distinguishable harmonic oscillators of frequency v. the chemical bonding between the atoms lowers the free energy by en. assume that v and ε are independent of the volume. present a complete derivation of the chemical potential of atoms in this solid.

Select the correct answer from each drop-down menu.describe what happens to a carbon-11 atom when it undergoes positron emission.the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons

How have the greenhouse gasses increased from the year 2000 to 2018

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter