Problem

One gram of water (

1\text{ cm}^3

) becomes

1671\text{ cm}^3

of steam when boiled at a constant pressure of

1\text{ atm}

(

1.013 \times 10^5\text{ Pa}

). The heat of vaporization at this pressure is

L_v = 2.256 \times 10^6\text{ J/kg}

. Compute (a) the work done by the water when it vaporizes (b) its increase in internal energy.