CHM 115 Exam 2 Purdue
Degeneracy - correct answer ✔✔Orbitals with a given n having identical energy
Metals - correct answer ✔✔Lose electrons from valence shall form cations
internal energy - correct answer ✔✔Potential and kinetic energy of all particles that make up the system
nonmetals - correct answer ✔✔Add electrons to valence shells, form negative ions (anions)
Work - correct answer ✔✔Energy transferred when an object moves by a force
enthalpy - correct answer ✔✔total heat content of a system
First law of thermodynamics - correct answer ✔✔ΔEsys = q + w
What happens to enthalpy under constant pressure conditions? - correct answer ✔✔ΔH = q, ΔH ≈ ΔE
Electrostatic attraction/repulsion - correct answer ✔✔The further the electron from the nucleus, the
higher the energy; when the nucleus has high charge, energy of the electron is lower (more stable) than
when nucleus has low charge
heat definition - correct answer ✔✔Energy transfer associated with change in temperature only
Work equation - correct answer ✔✔W = -P(ΔV)
Enthalpy - correct answer ✔✔H = E + PV
Degeneracy - correct answer ✔✔Orbitals with a given n having identical energy
Metals - correct answer ✔✔Lose electrons from valence shall form cations
internal energy - correct answer ✔✔Potential and kinetic energy of all particles that make up the system
nonmetals - correct answer ✔✔Add electrons to valence shells, form negative ions (anions)
Work - correct answer ✔✔Energy transferred when an object moves by a force
enthalpy - correct answer ✔✔total heat content of a system
First law of thermodynamics - correct answer ✔✔ΔEsys = q + w
What happens to enthalpy under constant pressure conditions? - correct answer ✔✔ΔH = q, ΔH ≈ ΔE
Electrostatic attraction/repulsion - correct answer ✔✔The further the electron from the nucleus, the
higher the energy; when the nucleus has high charge, energy of the electron is lower (more stable) than
when nucleus has low charge
heat definition - correct answer ✔✔Energy transfer associated with change in temperature only
Work equation - correct answer ✔✔W = -P(ΔV)
Enthalpy - correct answer ✔✔H = E + PV
