)A 2mx2m aluminum sheet (240 LC W is 5mm thick and used to separate two types of gas (1.1) and (55) in an experimental chamber. The 1st type of gas is maintained at 20C while the 2nd gas is at -20C. Solve for the rate of heat transfer in kW.
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- Skg of Steam at pressure of 4.9 bar is produ- ced from water at 20c. Determine the amount of heat supplied if the Steam is o.9 dy.1.0A cylinder ocontains 0.45 m' of a gas at 1 105 Nim' and 80°C. The gas is compressed to a volume of 0.13 m, the fmal pressure being 5 x 105 Nim. Detetmine : (a) The mass of gas : (b) The value of index 'n' for compression ( c) The increase in internal energy of the gas : (d) The heat received or rejected hy the gas during compression. (a) 0.433 kg : (b) n=1.296. : (e) 49.9 kl.: (d) 17.54 kl.Volume 0.05 m3 while the piston is attached with the pinin a cylinder with 200 kPa pressure and 300 Kthe temperature is. As a result of heat transfer from the environment, the pressure is 0.4 MPa, the pin breaks, and when the system becomes thermodynamically balanced, its volume is 0.1 m3. Area of piston 0.05 m2, piston and masses on 150 kg and atmospheric pressure102 is KPA. a)Find the temperature at the moment the pin breaks. b)Calculate the pressure and temperature after the pin breaks and reaches the equilibrium position.
- Hey steel tank with an interior volume of 30 m^3 contains an ideal gas of 300 K and 1E5 Pa of pressure (atmospheric pressure) if tank is sealed and the gas is heated to 450 K what will the new pressure bethe specific heat capacity of the system during a certain process is given by Cn(0.4+0.004T) kJ/kg deg. celcius. if the mass of the gas is 6kg and its temperature changes from 25 def. celcius to 125 def. celcius find the mean specific heat of the gasHi please help me solve this, teh answer must be in KJ/KG
- Choose correct answer: A vessel of capacity 4 m3 contains the mass of 7 kg of Helium gas at a pressure of 197000 N/m2 and a temperature of 342 K. Find the gas constant of Helium gas in J/kgK. Gas constant, (J/kgK)In a reciprocating air compressor, high pressure air in the cylinder pushes the piston against the external load and expand to a lower pressure. In a test the following measurements were noted:Internal energy of air before expansion = 27 kJInternal energy of air after expansion = 8 kJHeat entering the cylinder during the process = 2 kJSHOW THE DIAGRAM USING THE GIVEN PROVIDEDA vertical piston–cylinder assembly containing a gas is placed on a hot plate. Thepiston initially rests on the stops. With theonset of heating, the gas pressure increases.At what pressure, in bar, does the pistonstart rising, if it moves smoothly in thecylinder? given that atmospheric pressure=1bar mass of piston = 50kg area=0.01m2
- a) The relationship betw een he pressure and vo Lum e of an enclosed gas at a constant tem perature is investigated experim entally. The m athem atical relationship which is hen determ ined, isgiven by the fom ub pV = k Expbin how the value of k can be hcreased. 6) The relationsh ip betw een pressure and vo Lum e for he sam e gas at different tem peratures is show n in the graph. W hich of he graphs S or Nw illbe obtained at the higher tem perature? Exp lain your answ er. 1N 3 6) D raw on he sam e setof axes a rough freehand sketch graph of the reationsh ip betv een he vo lum e and the pressure of 1 mol hydrogen gas at (0 20°C and (i) 0°C. (Note: P ace the Rom an num bering () and (i) next tb he respective graph).1. The boiling temperature of water is 100 °C. If you put boiling water in a mugplaced at the table top, you observed that after some time the water cools down,decreasing the temperature of water in the mug. Why is this so? Explain using theZeroth Law of Thermodynamics. What happens to objects when temperature increases? For instance, a jar cover an be removed by putting the cover in hot water. Why is this so?1- A steam stripper is used to help removing wallpapers. It comprises of a tank of waterwith an electrical heating element. To generate steam, from which a long rubber tubeconveys the steam to the head which contact with the wallpaper to be removed.(i) The power rating of the electrical heating element is 2 KW, and the tank holds about3 liters of water. Estimate the time it would take from switching the power on tosteam to be generated. (ii) Once steam has started to be produced, estimate how long you could workcontinuously before having to refill the tank. Assume that all water initially in thetank can be evaporated into steam. Also, neglect any heat loss from the tank.Data :Room Temperature 20 oCHeat capacity of water, Cp 4.19 KJ kg-1 K-1Latent heat of vaporization of water at 100 oC, hfg 2257 KJ kg-1(iii) Stream is to be condensed in the condenser of a steam power plant at atemperature of 50 oC with cooling water from a nearby lake which enters the tubesof the condenser at 18 oC at…