Air at atmospheric pressure is compressed by a compressor to 1/7th the volume.what is the gauge pressure of the air assuming a constant temperature process?Take atmospheric pressure as 1bar
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(I)Air at atmospheric pressure is compressed by a compressor to 1/7th the volume.what is the gauge pressure of the air assuming a constant temperature process?Take atmospheric pressure as 1bar
(ii)0.8m3 of air at a temperature of 20 degrees Celsius is heated 71 degrees Celsius at constant pressure.How much does the air expand
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- (C) Explain briefly, can be described the air specification in the isolated cabin by two parameters such as Temperature and Pressure?(II) A cube of ice is taken from the freezer at - –8.5°C andplaced in an 85-g aluminum calorimeter filled with 310 g ofwater at room temperature of 20.0°C. The final situation isall water at 17.0°C. What was the mass of the ice cube?A pneumatic lift consists of a vertical cylinder with aradius of 10.0 cm. A movable piston slides within the cylinder atits upper end and supports a platform on which loads are placed. Anintake valve allows compressed air from a tank to enter the cylinder,and an exhaust valve allows air to be removed from the cylinder. Ineither case the rate of air transfer is sufficiently low that the temperaturein the cylinder remains constant. When neither valve is activated,the cylinder is airtight. The piston and platform together have a massof 50.0 kg, the temperature is 20.0 C, and the pressure outside thecylinder is 1.00 atm. There is 1.00 mol of air in the cylinder and no load on the platform. What is the height h between the bottom of the piston and the bottom of the cylinder?
- When an ideal gas is warmed from 20°C to 40°C, the gas’stemperature T that appears in the ideal gas law increasesby a factor(a) of 2.(b) of 1.07.(c) that depends on the temperature scale you useA pneumatic lift consists of a vertical cylinder with aradius of 10.0 cm. A movable piston slides within the cylinder atits upper end and supports a platform on which loads are placed. Anintake valve allows compressed air from a tank to enter the cylinder,and an exhaust valve allows air to be removed from the cylinder. Ineither case the rate of air transfer is sufficiently low that the temperaturein the cylinder remains constant. When neither valve is activated,the cylinder is airtight. The piston and platform together have a massof 50.0 kg, the temperature is 20.0 C, and the pressure outside thecylinder is 1.00 atm. At what rate should this air be introduced, in mmol/s, so that the platform rises at a rate of 10.0 cm/s?Estimate the work done in changing volume of a gas from 7.8 m3to 2.6 m3at constantpressure of 3.05 atmosphere.
- When using the ideal gas law, which of the following rulesmust be obeyed?(a) Always use temperature in kelvins and absolute pressure.(b) Always use volume in and temperature in kelvins.(c) Always use gauge pressure and temperature indegrees Celsius.(d) Always use gauge pressure and temperature in kelvins.(e) Always use volume in and gauge pressure.If 14.00 mol of helium gas is at 10.0o C and agauge pressure of 0.350 atm, calculate (a) the volume of the helium gas under these conditions (b) the temperature if the gas is compressed to precisely halfthe volume at a gauge pressure of 1.00 atm(I) Among the highest and lowest natural air temperatures claimed are 136°F in the Libyan desert and –129°F in Antarctica. What are these temperatures on the Celsius scale?