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CHE 254 — Assignment 4 — 090831 2.36 The relationship between the pressure P and volume V of the air in a cylinder during the upstroke of a piston in an air compressor can be expressed as k
PV =C
where k and C are constants. During a compression test, the following data are taken: P (mmHg) 760 1140 1520 2280 3040
3800
48.3 37.4 31.3 24.1 20.0 V ( cm ) Determine the values of k and C that best fit the data. (Give both numerical values and units.) 3
CHE 254
Assignment 4 — due 9/1/09 Tom Bertalan, James Clark, Craig Jackson, Rohit Deshane
17.4
Tonya Klein
Page 2 of 2
3.1 (a-c) Perform the following estimations without using a calculator. (a) Estimate the mass of water (kg) in an Olympic-size swimming pool. (b) A drinking glass is being filled from a pitcher. Estimate the mass flow rate of the water (g/s). (c) Twelve heavyweight boxers coincidentally get on the same elevator in Great Britain. Posted on the elevator wall is a sign that gives the maximum safe combined weight of the passengers, W max , in stones 1 stone=14 lb m≈6 kg . If you were one of the boxers, estimate the lowest value of W max for which you would feel comfortable remaining on the elevator.
CHE 254
Assignment 4 — due 9/1/09 Tom Bertalan, James Clark, Craig Jackson, Rohit Deshane
Tonya Klein
CHE 254 — Assignment 4 — 090831 2.36 The relationship between the pressure P and volume V of the air in a cylinder during the upstroke of a piston in an air compressor can be expressed as k
PV =C
where k and C are constants. During a compression test, the following data are taken: P (mmHg) 760 1140 1520 2280 3040
3800
48.3 37.4 31.3 24.1 20.0 V ( cm ) Determine the values of k and C that best fit the data. (Give both numerical values and units.) 3
CHE 254
Assignment 4 — due 9/1/09 Tom Bertalan, James Clark, Craig Jackson, Rohit Deshane
17.4
Tonya Klein
Page 2 of 2
3.1 (a-c) Perform the following estimations without using a calculator. (a) Estimate the mass of water (kg) in an Olympic-size swimming pool. (b) A drinking glass is being filled from a pitcher. Estimate the mass flow rate of the water (g/s). (c) Twelve heavyweight boxers coincidentally get on the same elevator in Great Britain. Posted on the elevator wall is a sign that gives the maximum safe combined weight of the passengers, W max , in stones 1 stone=14 lb m≈6 kg . If you were one of the boxers, estimate the lowest value of W max for which you would feel comfortable remaining on the elevator.
CHE 254
Assignment 4 — due 9/1/09 Tom Bertalan, James Clark, Craig Jackson, Rohit Deshane
Tonya Klein
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