A 0.5-m3 tank contains saturated steam at 300 kPa. Heat is transferred until the pressure reaches 100 kPa. Determine a) the heat transferred, b) the final temperature, and c) the final steam quality.

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Q15) A cylinder having an initial volume of 3 m' contains 0.1 kg of water at 40°C. The water is then compressed in an isothermal quasi-equilibrium process until it has a quality of 50%. Calculate the work done in the process splitting it into two steps. Assume the water vapor is an ideal gas during the first step of the process. (-13.4 k.J]

Plot the process on pv diagram which show the state points relative to the vapor dome. Label the states 1,2,3.. to indicate the sequence of the change in state.

Q5

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Water at P1 = 200 kPa with a quality of 25% has its temperature raised 20 oC (T2 = T1+20 0C) in a constant pressure process. What is the initial (v1) and final (v2) specific volumes?

A rigid tank (0.010 m³) contains saturated liquid water at 160 deg C. How much heat (kJ) must be added for the pressure to be 800 kPa and a temperature of 200 deg C?

Either the system illustrated below where the fluid considered is water. 1. Calculate: (a) the internal energy (specific), and (b) the mass finally remaining in the volume of Control. 2. In the control volume, what is: (a) the specific internal energy of the saturated steam, (b) The specific internal energy of the saturated liquid, and (c) the (final) temperature? 3 kg. 30 m 100 kPa, 160°C 2 kg, 10 m 100 kPa, 140°C, 200 m/s 3 2 1 kg, 0 m 100 kPa. 100°C, i 1000 m/s ++ Q=9200 kJ mini= 10 kg 100 kPa, x=0.6 min= ? kg 100 kPa, Uin=? +7 kg, 20 m 4 100 kPa, 150°C 8 kg. 0 m 5 100 kPa. 130°C, 100 m/s

3) A tank, well insulated, has two parts divided by partition. The first part incuded 5,5 kg of water at 600 kPa while the other part is evacuated. This partition is removed and the water expands to fill the entire tank. If the final pressure and temperature are 250 kPa and 150 °C, respectively, please determine a- The volume of the tank b- Temperature of the water for first part