Answer: ice water
Explanation: Kinetic energy is the energy possessed by a substance by virtue of its motion and is directly proportional to the temperature of substance.
\(K.E=\frac{3}{2}RT\)
R= gas constant
T= temperature
Thus boiling water will have a temperature of around \(100^0C\), ice water will have a temperature of \(0^0C\), refrigerated water will have a temperature of more than \(0^0C\), and water at room temperature will have a temperature more than refrigerated water but less than boiling water.
Thus ice water has lowest temperature and thus will have lowest kinetic energy.
