IB skill practice

Use quantum model evidence and limitations

Paper 1, Paper 2 5 marks Difficulty 4

Quantum gap compared with thermal energy

A model limitation check in a quantum evidence review compares a level gap of \(2\,\text{eV}\) with thermal energy \(0.025\,\text{eV}\). Calculate the ratio. Use the diagram labels before calculating the requested value. Enter the numerical result and choose the interpretation that matches the quantum or nuclear physics.

Worked practice: physics data and result

Read the physical quantities first, then calculate the result and state what it means.