why is the T at P=5Mpa is equal to 200 deg C?

consider the mass and pulley system in the attached file. mass m1 = 29 kg and mass m2 = 12kg. the angle of the inclined plane is given and the coefficient of kinetic friction between mass m2 and the inclined plane is uk = 0.12. assume the pulleys are massless and frictionless when mass m2 moves a distance 4.94 m up the ramp, how far downward does mass m1 move? d= ?

A vessel of water containing 300 kg of water is initially at 270 K. A 100 kg piece of metal,initially at 1300 K, is placed in the water vessel to cool and the vessel is closed. The specificheat of the metal is 0.6 kJ/kg K and 4.2 kJ/kg K for water. Assume the specific heats areconstant and that the vessel is well insulated.a. Find the final equilibrium temperature after cooling. b. Find the amount of entropy generated within the vessel in kJ/K.

A fixed volume of propane is initially at T = 420 K and P = 3 MPa. The temperature is raised to T = 500K. Find the current pressure of the propane with thermodynamic reasoning