A piston cylinder device contains 2kg of water at 27°c . the pressure of the system is 3 MPa. then the heat is added to the water , keeping the pressure constant, until the temperature of the system reaches 340°c , during the heat addition, the volume of the cylinder is expected by 0.075m³ . determine. 1) the work done.

2) the heat addition between 27°c to 100°c.

{specific heat capacity of water-4186J/kgK​

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length of a column of water 1.00 km high for a temperature increase of 1.00ºc. note that this calculation is only approximate because ocean warming is not uniform with depth. (answer in ×10^{-3} −3 m)