Which of the following physical state has more kinetic energy? Ice, Water, Water vapour.

Dear student,

Water vapour have higher kinetic energy than liquid water or solid (ice) particles as they have more inter molecular space available for them to move in a faster and more random way than is liquid or solid, thus the kinetic energy is maximum in vapour state.

Regards!

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Water vapour because the particlas of water vapour are far apart from each other and can move freely
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Dear Student,
 
The space and intermolecular forces of attraction between the molecules of water vapour is more than ice. Thus, water vapour has more kinetic energy.
 
Regards. 
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