Home of real teaching & learning
  • Full support for teachers
  • Focus on critical thinking
  • Engaging classroom activities
  • Integrated student eBook
  • Assessed tasks / qBank
  • Practice exam questions

The InThinking Guarantee: Our sites are written by expert practitioners and not by AI

See our AI policy

Disclaimer: InThinking subject sites are neither endorsed by nor connected with the International Baccalaureate Organisation.

Don't miss out, find out!

E1 solutions: Electron energy levels

1. The average KE and temperature in Kelvin of the molecules of a gas are related by the equation KE = 3/2 kT where k is the Boltzmann constant 1.38 x 10-23 m2kgs-2. The diagram shows the energy levels for a Hydrogen atom. Use this information to show that Hydrogen at room temperature will not emit light. 2.When Hydrogen burns in Oxygen 241.8 kJ of energy are released per mole. Show that this reaction can produce...

Help