A 10 kg metal block initially at 200 degrees Celsius and 1 MPa is heated to 500 degrees Celsius and 100 MPa. The metal block has a density of 2000kg/m^3 and a specific heat of 2kJ/kg*K. Calculate the change in the total internal energy and enthalpy of the metal block. Assume the metal block as an incompressible substance and its specific heat as constant.