Problem

Problem

Find the change in the internal energy of

2\text{ kg}

of water as it is heated from

0^{\circ}\text{C}

to

4^{\circ}\text{C}

. The specific heat capacity of water is

4200\text{ J/kg}\cdot\text{K}

and its densities at

0^{\circ}\text{C}

and

4^{\circ}\text{C}

are

999.9\text{ kg/m}^3

and

1000\text{ kg/m}^3

, respectively. Atmospheric pressure =

10^5\text{ Pa}

.

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