Q4: 05 lg of water at 7bar and 15¿ is contained in a cylin- der 0-3m diameter by supplied until the temperature of cylinder contents becomes 204°c, the pressure of the contents remains at 7bar. Determine: a the heat energy supplied frictlon-Less piston Heat energy is b. the distance moved by the piston, c. the work energy,

i need the answer quickly

During processing in a steel mill, a 375kg steel casting at 800 degrees  is quenched by plunging it into a 500-gal oil bath, which is initially 75 degrees . After the casting cools and the oil bath warms , what is the final tempertature of the two? The weight per unit volume of the oil is 7.5 lb/gal.

Mr Zul operates a hot plate. He places a closed, rigid container of volume 0.5 m3on the hot plate. Initially, the container holds a saturated mixture with quality ofvapour of 0.5, at a pressure of 100 kPa. After heating, the pressure in the containerincreases to 150 kPa.a) Calculate the mass of vapour at the initial and final states (in kg).b) If heating is allowed to continue, find the pressure (in kPa) when thecontainer holds only saturated vapour.c) Sketch the T – v diagram for this system.