In an experimental determination of specific heat capacity of air at constant pressure, 50 gm of air at constant pressure was heated from 14°C to 74°C during a period of 300 seconds by a continued electric heating method. The power consumed was 10.04 watts. Determine (a) Specific heat of air at constant pressure. (b) Characteristic gas constant R for air. (c) Density of air at 0°C and 0.1 MPa. Take ratio of specific heats for air = 1.4. %3D

In an experimental determination of specific heat capacity of air at constant pressure, 50 gm of air at constant pressure was heated from 14°C to 74°C during a period of 300 seconds by a continued electric heating method. The power consumed was 10.04 watts. Determine (a) Specific heat of air at constant pressure. (b) Characteristic gas constant R for air. (c) Density of air at 0°C and 0.1 MPa. Take ratio of specific heats for air = 1.4. %3D

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

In determining the average rate of heating of a tank of 20% sugar syrup, thetemperature at the beginning was 20°C and it took 30 min to heat to 80°C. Thevolume of the sugar syrup was 50 ft3 and its density 66.9 lb/ft3. The specific heat ofthe sugar syrup is 0.9 Btu lb-1°F-1.(a) Convert the specific heat to kJ kg-1°C-1.(b) Determine the rate of heating, that is the heat energy transferred in unit time, in SI units (kJ s-1)
Determine the quantity (volume) of saline water in a steam generator. The heat energy of 1576 kJ is supplied to saline water in the steam generator to heat from 22°C to 123°C for the generation of water vapor, Take the density & specific heat of the solution as 1033 kg/m & 3.7 J/kg°K respectively. Solution: Change in Temperature (in K) 101 Mass of the saltwater (in kg) 4217.28 Quantity (Volume) of saltwater (in m) 4.082
Section F Type your answer. A sealed rig (1 m3) contains 2 kg of water (liquid PLUS vapour) at 20°C. The rig is heated until the temperature inside is 95°C. Calculate: 44 The quality of steam at 95°C. (%) Type your answer. Тур 1 45 Internal energy at 20°C. (kJ/kg) Type your answer. 46 Internal energy at 95°C. (kJ/kg) Type your answer.
1 leg of uater at 47.8č constant pressure of 13.7 bad until it is converted into Steam withe 111 of Super- heated. Determine the quanti ty of heat Supplied during Superheating and the total heat. is heated under (268 17 , 2852 K5]
Determine the quantity (volume) of saline water in a steam generator. The heat energy of 1738 kJ is supplied to saline water in the steam generator to heat from 26ºC to 111ºC for the generation of water vapor, Take the density & specific heat of the solution as 1031 kg/m3 & 3.6 J/kgºK respectively. Solution: Change in Temperature (in K) Answer for part 1 Mass of the saltwater (in kg) Answer for part 2 Quantity (Volume) of saltwater (in m3) Answer for part 3
A gas with R = 278.6 J/kg-K and cv = .736 kJ/kg-K expands from 14.972 atm and 561 K to9.524 atm. Assume that throughout the process, the system is insulated. For 0.454 kg/sof this gas, prove that:a. V2 = 0.06 m3/s;b. dS = 0; andc. - dH = 1810 kJ/min.
Heat mass transfer
I leg of wiater at 47.8i is heated under kg constant pressure of 13.7 bad until it is converted into Steam withe 111 of Super- heated. Determine the quanti ty of heat Supplied during Superheating and the total heat. (268 1g - 2852 Kg]
1 kg of Oxygen has initial volume of 2 x 10° cm³ is heated at Isobaric process from 298 K to 200°C. Calculate (i) ratio of specific heats (i) heat transfer in 'kl' (ii) work transfer in 'kJ'(V) change in internal energy in 'kl' (V) volume after heating (vi) pressure before heating in "bar'. Gas (kJlkg K) (kJ/kg K) Air 1.005 0.718 Oxygen Nitrogen Hydrogen 0.920 0.660 1.046 0.754 14.40 10.40 Carbon monoxide 1.046 0.754
A weighted piston (total masa of 17 kg)., resting on stops in a cylnder (radius of 0.05 m) divides a container into two regions. 0.075 kg of saturated liquid water at 50 Cis contained beneath the piston. The rest of the cylinder and container is evacuated. Heat is applied to the water until the piston is lifted off of the stops and moved a distance () of 0.6 m. As the piston reaches the mouth of the cylinder, the hermetic seal is broken and the cylinder contents can now expand to fil the remainder of the evacuated space. At this instant, no additional heat is added to or removed from the system. When the system fully equilibrates, its absolute pressure is measured to be 0.01 MPa vacuum y -E Cre 20 What is the state of the water when the piston begins to rise off of the stops? ? bị What is the water temperature when the piston reaches the mouth of the cylinder? c) What is the final volume of the water (after the seal is brokenj?
Required information A 1.76-m³ rigid tank contains steam at 220°C. One-third of the volume is in the liquid phase and the rest is in the vapor form. The properties of steam at 220°C are given as follows: vf= 0.001190 m³/kg and vg = 0.08609 m² m³/kg. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Steam Vm³ 220°C Determine the quality of the saturated mixture. The quality of the saturated mixture is
This question is related to Thermodynamics and properties