Based on the thermodynamic properties provided for water, determine the energy change when the temperature of 0.650 kg of water decreased from 101 °c to 51.0 °c.

The energy change of water during the change in temperature is 1333.69 kJ

Given data:

The mass of water is, m = 0.650 kg.

The initial temperature of water is, .

The final temperature of water is, .

Since, the boiling point of water is , which means it has to convert from steam at 101 Degree Celsius to liquid at 51 Degree Celsius. Therefore, the energy change is given as,

Here, c is the specific heat of water and h is the latent heat of vaporization of water. Its value is .

Solving as,

Thus, the energy change of water during the change in temperature is 1333.69 kJ.

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