Chapter 3, Problem 20P

Gay-Lussac's Law: (Q2)   A gas in a pressure vessel has a temperature of 40 °C and a pressure of 20 psi. Heat is added and its pressure rises to 80 psi.   What is the new temperature in °C?    Use Two decimal places. Do not write the unit.

:+B العنوان I need a actanicu urawing with Car nation The guide vane angle of a reaction turbine (Francis type make 20° with the tangent. The moving blade angle at entry is 120° The external diameter of runner is 450 mm and the internal diameter is 300 mm. Runner width at entry is 62.5mm and at exit 100mm. Calculate the blade angle at exit for radial discharge.

The volume of a gas is increased, and the temperature is maintained consent. The original volume was 1200 mm3 and its pressure was 100 psi. What is the new pressure in psi, if the volume is increased to 2250 mm3?   Use Two decimal places. Do not write the unit.

:+B العنوان I need a actanicu urawing with Car nation The guide vane angle of a reaction turbine (Francis type make 20° with the tangent. The moving blade angle at entry is 120° The external diameter of runner is 450 mm and the internal diameter is 300 mm. Runner width at entry is 62.5mm and at exit 100mm. Calculate the blade angle at exit for radial discharge.

The guide vane angle of a reaction turbine (Francis type make 20° with the tangent. The moving blade angle at entry is 120°. The external diameter of runner is 450 mm and the internal diameter is 300 mm. Runner width at entry is 62.5mm and at exit 100mm. Calculate the blade angle at exit for radial discharge.

answer this as soon as possible, please.

A piston–cylinder device contains 50 kg of water at 250 kPa and 25°C. The cross-sectional area of the piston is 0.1 m2. Heat is now transferred to the water, causing part of it to evaporate and expand. When the volume reaches 0.26 m3, the piston reaches a linear spring whose spring constant is 100 kN/m. More heat is transferred to the water until the piston rises 20 cm more. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.       Determine the work done during this process.   The work done during this process is  kJ.

A 4-m × 5-m × 7-m room is heated by the radiator of a steam-heating system. The steam radiator transfers heat at a rate of 10,000 kJ/h, and a 100-W fan is used to distribute the warm air in the room. The rate of heat loss from the room is estimated to be about 5000 kJ/h. If the initial temperature of the room air is 10°C, determine how long it will take for the air temperature to rise to 25°C. Assume constant specific heats at room temperature. The gas constant of air is R = 0.287 kPa·m3/kg·K (Table A-1). Also, cv = 0.718 kJ/kg·K for air at room temperature (Table A-2).   Steam enters the radiator system through an inlet outside the room and leaves the system through an outlet on the same side of the room. The fan is labeled as W sub p w. The heat is given off by the whole system consisting of room, radiator and fan at the rate of 5000 kilojoules per hour.   It will take 831  Numeric ResponseEdit Unavailable. 831 incorrect.s for the air temperature to rise to 25°C.

A piston–cylinder device contains 50 kg of water at 250 kPa and 25°C. The cross-sectional area of the piston is 0.1 m2. Heat is now transferred to the water, causing part of it to evaporate and expand. When the volume reaches 0.26 m3, the piston reaches a linear spring whose spring constant is 100 kN/m. More heat is transferred to the water until the piston rises 20 cm more. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.       Determine the final pressure and temperature.   The final pressure is  kPa. The final temperature is  ºC.   Find the work done during the process