(a) A certain perfect gas at temperature 15 °C and pressure 250 kN/m², occupying a volume of 0.35 m³ at initial state. The gas is heated at constant pressure until the temperature is 55°C. Take Cp for the gas as 0.48 kJ/kgK, calculate: i. The final volume of the gas ii. The work done during the process iii. The heat transferred during the process

(a) A certain perfect gas at temperature 15 °C and pressure 250 kN/m², occupying a volume of 0.35 m³ at initial state. The gas is heated at constant pressure until the temperature is 55°C. Take Cp for the gas as 0.48 kJ/kgK, calculate: i. The final volume of the gas ii. The work done during the process iii. The heat transferred during the process

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

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?
Consider a rigid container which contains 3 kg of an ideal gas at 300 kPa and 50°C. Yesconnected to the container is a valve, which, when opened, lets out half of the mass of the container.gas, if the final pressure in the container is 220kPa, the final temperature in °C is: (showsdetail all your calculations)
The molar specific heat at constant volume of an ideal gas is equal to 2.5times the universal gas constant (8.314J/mol-K). When the temperature increases by 150K. Find the change in molar specific enthalpy.
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.
Mr Luda wants to understand further about a newly created gas. The gas is initiallyat a pressure of 90 kPa, volume of 1.258 m3 and temperature of 10°C (State 1).The gas undergoes a 3-step process in which it is first compressed isothermally toa pressure of 400 kPa and volume of 0.283 m3 (State 2), then expanded at constantpressure back to its original volume (State 3). Finally, the gas is returned to itsoriginal State 1 by cooling at constant volume.a) Sketch the cycle of this system on a P – V diagram.b) Calculate the work done (in kJ) for each process step.c) Determine the total work done for the three-process cycle.d) State whether the work done is on or by the system.
A prototype boiler that contains 5 kg of saturated steam at a pressure of 482.5kPa. Determine the amount of heat which must be rejected in order to reduce the quality to 60%. (a) What will be the pressure and temperature of the steam at this new state? Compute for the (b) heat, (c) internal energy, (d) entropy, and (e) enthalpy at this new state. Note: Consider a constant pressure process. Please show solution for the interpolation.
What are the specific volume, specific internal energy, specific enthalpy andspecific entropy of steam at 1.50 Mpa and temperature is 180 oC?
a piston cylinder arrangement contains 0.11 kg of Nitrogen and recieves 11.78 kJ of heat isothermally. the initial pressure and temperature of the gas are 456.7 kPa and 123 deg C respectively. If temperature is maintained find the final pressure in kPa
Three cubic meter of air at a pressure of 20 kPag and 20 0 C is compressed atconstant volume to a pressure of 425 kPag. Please answer the following a. The thermodynamic process the problem representsb. the pressure, temperature, and volume after the processc. change in internal energy, change in enthalpy and change in entropyd. work nonflow and heat transferred
A perfect gas has a value of R = 58.8 ft-lb/lb-oR and k = 1.26. If 20 Btu are added to 5 lb of this gas at constant volume when the initial temperature is 90 oF, find the change in entropy
A closed rigid container has a volume of 1 m3 and holds air at 344.8 kPa and 273 K. Heat is added until the temperature is 6000K. (Rair = 0.287 kJ/kg K), (kair = 1.4). a. What is the mass of air?, b. What is the final pressure? , c. What is the change in enthalpy? and d. What is the value of heat added to the system? JUST ANSWER ONLY THE LETTER D.
find the volume of 2.3 kg of dry staurated steam at 11000 kpa ?.