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A. Find the boiling temperature of a juice that is boiling at an absolute pressure of 31.19 KPa. Assume that the boiling point elevation is negligible.
B. Find the enthalpy of superheated steam with pressure 150 kPa and temperature 150°C.
C. If the enthalpy of saturated steam at 50°C and 55°C is 2592.1 kJ/kg and 2600.9 kJ/kg, respectively, find the enthalpy at 53°C.
How would you describe why we have different atmospheric pressure on different level (height) of earth's atmosphere in molecular level (molecular behaviour and what causes such behaviour).
The spheres are brought into contact and then separated to a distance of 2.40 cm. Determine the magnitude of the force that each sphere now experiences, and state whether the force is attractive or repulsive.
If the intensity of the electromagnetic radiation produced by the Sun is about 1.4 kW/m2 near the Earth, what size would a sail have to be to accelerate a spaceship with a mass of 11.9 metric tons at 1.39 m/s2
Suppose a 20 kg ball moving at 5 m/s collides with a 100 kg ball moving at 3 m/s. How much kinetic energy was lost in the collision
(a) Calculate the lowest energy of the electron in He+. Is it lower than that of H (b) If this electron absorbs a photon and makes a transition to the 2p orbital
A 100 pF capacitor is charged to a potential difference of 70 V, and the charging battery is disconnected. what is the capacitance of this second capacitor
The inner and outer surfaces of a cell membrane carry a negativeand positive charge, respectively. evaluate the magnitude of the electric field in the membrane
A state highway patrol car radar unit uses a frequency of 8.00×10^9Hz. What frequency difference will the unit detect from a car receding at the speed of 44.50 from a stationary patrol car.
A person pulls a toboggan for a distance of 34.8 m along the snow with a rope directed 32.2 degrees; above the snow. The tension in the rope is 91.5 N. How much work is done on the toboggan
A fighter plane flying at constant speed 510 m/s and constant altitude 7400 m makes a turn of curvature radius 5300 m. What is his/her apparent weight during the plane's turn
A ball with mass 750 g is dropped from a height of 1.25 m. hat is the magnitude and direction of the impulse from the floor that makes the ball bounce
q1. a combined cycle gas turbine power plant can run at 50 percent efficiency. assume such a plant delivers 1 gw of
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