Question

In: Chemistry

Given that the density of air at 0.987 bar and 27°C is 1.146 kg m−3, calculate...

Given that the density of air at 0.987 bar and 27°C is 1.146 kg m−3, calculate the mole fraction and partial pressure of nitrogen and oxygen assuming the following conditions.

(a) air consists only of these two gases
mole fraction nitrogen
  
mole fraction oxygen
  
partial pressure nitrogen
  bar
partial pressure oxygen
  bar

(b) air also contains 1.0 mole percent Ar
mole fraction nitrogen
  
mole fraction oxygen
  
partial pressure nitrogen
  bar
partial pressure oxygen
  bar
partial pressure argon
  bar

Solutions

Expert Solution


Related Solutions

Given that the density of air at 0.987 bar and 27°C is 1.146 kg m 3,...
Given that the density of air at 0.987 bar and 27°C is 1.146 kg m 3, calculate the mole fraction and partial pressure of nitrogen and oxygen assuming that a) air consists only of these two gases b) air also contains 1.0 mole per cent Ar. Please show step by step of calculations.
Consider a compressor in which air enters at 1 bar, 27°C and exits at 3.5 bar,...
Consider a compressor in which air enters at 1 bar, 27°C and exits at 3.5 bar, 127°C. The work required is 127 kJ/kg of air flowing through the compressor. Heat transfer between the compressor and environment occurs at 27°C. Determine (a) the heat transfer, in kJ/kg (b) the entropy generation rate, in kJ/kg.K, for the compressor as a control volume (c) the entropy generation rate, in kJ/kg.K, for the compressor and the surrounding environment (d) the entropy generation rate, in...
0.5 kg of air at 30 bar and 350 °C is allowed to expand reversibly in...
0.5 kg of air at 30 bar and 350 °C is allowed to expand reversibly in a cylinder behind a piston in such a way that the temperature remains constant to a pressure of 0.75 bar. Based on the law pv1.05= constant, the air is then compressed until the pressure is 10 bar. Assuming air to be a perfect gas, determine the: a) net entropy change, b) net heat flow, c)net work energy transfer and sketch the processes on a...
At steady state, 100 m^3/min of dry air at 32 C, 1 bar is mixed adiabatically...
At steady state, 100 m^3/min of dry air at 32 C, 1 bar is mixed adiabatically with a stream of oxygen at 127 C, 1 bar to form a mixed stream at 47 C, 1 bar. Kinetic and potential energy effects can be ignored. Find: (a) the mass flow rates of the dry air and the oxygen (b) the mole fractions of the dry air and oxygen in the exiting mixture (c) the time rate of entropy production
Say the density of air is 1.23 kg/m3 and the density of helium is 0.164 kg/m3...
Say the density of air is 1.23 kg/m3 and the density of helium is 0.164 kg/m3 when both are at STP. Let's model a balloon as a sphere of radius 0.12 m, with mass 2 g. 1) What is the mass of the helium that would fill a single balloon? 2) What is the buoyant force on a single balloon? 3) What is the net force on a single balloon? 4) If we attach 0.5 m of string (properties: 800...
1.Density water = 1 kg/m^3 and density of ice = 90% density of water. How much...
1.Density water = 1 kg/m^3 and density of ice = 90% density of water. How much of an ice cube in your glass of water is below the surface? calculate the specific gravity of ice. (show work ) 2. a piece of cork which weights 0.25 N in air and has a specific gravity of 0.25 . If the cork is allowed to float in water, what fraction of its volume will be above water ?
A spring loaded piston cylinder contains 1.5 kg of air at 27°C and 160 kPa. It...
A spring loaded piston cylinder contains 1.5 kg of air at 27°C and 160 kPa. It is now heated in a process where pressure is linear in volume, P = A + BV, to twice the initial volume where it reaches 900 K. Find the work, the heat transfer and the total entropy generation assuming a source at 900 K. Is this a possible process?
3 Kg mass of water is heated to a temperature of 99.5 C at 1 bar...
3 Kg mass of water is heated to a temperature of 99.5 C at 1 bar of pressure. It is slowly poured into a heavily insulated beaker containing 7.5 Kg of water at a temperature and pressure of 4 C, 1 bar, respectively. The specific heat of the water, an incompressible material is, c = 4.1 KJ/(Kg K). The beaker can be considered to be an adiabatic system. The two water mass’ reach an equilibrium temperature. There is no kinetic...
A 2.8kg balloon is filled with helium ( density = 0.179 kg/m 3 ). Part A...
A 2.8kg balloon is filled with helium ( density = 0.179 kg/m 3 ). Part A If the balloon is a sphere with a radius of 5.1m , what is the maximum weight it can lift? (N)
a) A block of Aluminum has a density of 2700 kg/m^3 and a mass of 63...
a) A block of Aluminum has a density of 2700 kg/m^3 and a mass of 63 grams. The block is tied to one end of a string and the other end of the string is tied to a force scale. The block is allowed to hang in the air from the string. Calculate the force which will be registered on the scale. b) The block remains tied to the string but is now completely submerged in a container of water....
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT