a cylinder of 0.9 m cube in volume contains air at 0°c and 39.24n/cm^2 absolute pressure. the air is compressed to 0.45 m^3.find(1) the pressure inside the cylinder as a isothermal process, (2)pressure and temperature assuming adiabatic process . take k=1.4 for air.
a cylinder of 0.9 m cube in volume contains air at 0°c and 39.24n/cm^2 absolute pressure. the air is compressed to 0.45 m^3.find(1) the pressure inside the cylinder as a isothermal process, (2)pressure and temperature assuming adiabatic process . take k=1.4 for air.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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a cylinder of 0.9 m cube in volume contains air at 0°c and 39.24n/cm^2 absolute pressure. the air is compressed to 0.45 m^3.find(1) the pressure inside the cylinder as a isothermal process, (2)pressure and temperature assuming adiabatic process . take k=1.4 for air.
![13. The velocity distribution over a plate 1s g
Calculate the pressure within the droplet of
31
[Ans. 0.4,
[Ans. 0.333
m]
1.8 kg 539.55 N-m
Ans.
m
kg°K
mine the gas constant and also the density of the gas.
-19/20
ynnder of 0.9 m³ in volume contains air at 0°C and 39.24 N/cm' absolute pressure. The air is com-
Pressed to 0.45 m². Find (i) the pressure inside the cylinder assuming isothermal process, (1) pressure and
temperature assuming adiabatic process. Take k = 1.4 for air.
[Ans. (i) 78.48 N/cm², (ii) 103.5 N/m², 140°C]
18. Calculate the pressure exerted by 4 kg mass of nitrogen gas at a temperature of 15°C if the volume is 0.35 m’.
[Ans. 97.8 N/cm2]
Molecular weight of nitrogen is 28.
ry. The pressure of a liquid is increased from 60 N/cm to 100 N/cm and volume decreases by 0.2
1, Determine the bulk modulus of elasticity.
per cent.
[Ans. 2 x 10 N/cm2]
20. Determine the bulk modulus of elasticity of a fluid which is compressed in a cylinder from a volume of
O009 m at 70 N/cm pressure to a volume of 0.0085 m³ at 270 N/cm² pressure. [Ans. 3.6 × 10' N/cm']
1. The surface tension of water in contact with air at 20°C is given as 0.0716 N/m. The pressure inside a
droplet of water is to be 0.0147 N/cm greater than the outside pressure, calculate the diameter of the
( droplet of water.
' Find the surface tension in a soap bubble of 30 mm diameter when the inside pressure is 1 962 N/m2 above
[Ans. 1.94 mm]
atmosphere.
The surface tension of water in contact withn air is given as 0.0725 N/m. The pressure outside the droplet of
[Ans. 0.00735 N/m]
water of diameter 0.02 mm is atmospheric 10.32
cm
2](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdad423ff-549e-4344-83c4-b73142e4bc3f%2Ff320385c-03ac-4f31-a5d8-ffaa45c3d7ed%2Foq3yynl_processed.jpeg&w=3840&q=75)
Transcribed Image Text:13. The velocity distribution over a plate 1s g
Calculate the pressure within the droplet of
31
[Ans. 0.4,
[Ans. 0.333
m]
1.8 kg 539.55 N-m
Ans.
m
kg°K
mine the gas constant and also the density of the gas.
-19/20
ynnder of 0.9 m³ in volume contains air at 0°C and 39.24 N/cm' absolute pressure. The air is com-
Pressed to 0.45 m². Find (i) the pressure inside the cylinder assuming isothermal process, (1) pressure and
temperature assuming adiabatic process. Take k = 1.4 for air.
[Ans. (i) 78.48 N/cm², (ii) 103.5 N/m², 140°C]
18. Calculate the pressure exerted by 4 kg mass of nitrogen gas at a temperature of 15°C if the volume is 0.35 m’.
[Ans. 97.8 N/cm2]
Molecular weight of nitrogen is 28.
ry. The pressure of a liquid is increased from 60 N/cm to 100 N/cm and volume decreases by 0.2
1, Determine the bulk modulus of elasticity.
per cent.
[Ans. 2 x 10 N/cm2]
20. Determine the bulk modulus of elasticity of a fluid which is compressed in a cylinder from a volume of
O009 m at 70 N/cm pressure to a volume of 0.0085 m³ at 270 N/cm² pressure. [Ans. 3.6 × 10' N/cm']
1. The surface tension of water in contact with air at 20°C is given as 0.0716 N/m. The pressure inside a
droplet of water is to be 0.0147 N/cm greater than the outside pressure, calculate the diameter of the
( droplet of water.
' Find the surface tension in a soap bubble of 30 mm diameter when the inside pressure is 1 962 N/m2 above
[Ans. 1.94 mm]
atmosphere.
The surface tension of water in contact withn air is given as 0.0725 N/m. The pressure outside the droplet of
[Ans. 0.00735 N/m]
water of diameter 0.02 mm is atmospheric 10.32
cm
2
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