1.9 Predict and explain the changes in the potential energy, the kinetic energy and the total energy as two isolated helium (or another noble gas) atoms approach each other.
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4 Terms
What happens to potential, kinetic, and total energy when two noble gas atoms are far apart?
Potential Energy: High (weak attraction)
Kinetic Energy: Constant (atoms move freely)
Total Energy: Constant (sum of PE + KE)
What happens to the energy when two noble gas atoms start moving closer together?
Potential Energy: Decreases (weak van der Waals forces attract them)
Kinetic Energy: Increases slightly (atoms speed up due to attraction)
Total Energy: Constant (energy is conserved)
What happens to energy when two noble gas atoms reach their most stable distance?
Potential Energy: At its lowest (system is most stable)
Kinetic Energy: At its highest within this range (atoms vibrate slightly)
Total Energy: Constant (sum of PE + KE remains the same)
What happens when two noble gas atoms get too close together?
Potential Energy: Increases rapidly (electron clouds repel each other)
Kinetic Energy: Decreases slightly (atoms slow down due to repulsion)
Total Energy: Constant (energy is conserved)