A large tank is filled with methane gas at a concentration of 0.770 kg/m3. The valve...
A large tank is filled with methane gas at a concentration of 0.770 kg/m3. The valve of a 1.30-m pipe connecting the tank to the atmosphere is inadvertantly left open for 11.0 hours. During this time, 6.90x10-4 kg of methane diffuses out of the tank, leaving the concentration of methane in the tank essentially unchanged. The diffusion constant for methane in air is 2.10x10-5 m2/s. What is the cross-sectional area of the pipe? Assume that the concentration of methane in the atmosphere is zero.
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A large tank is filled with methane gas at a concentration of
0.770 kg/m3. The valve...
1. A rigid (constant volume) tank sealed by a valve initially contains 100 kg of air...
1. A rigid (constant volume) tank sealed by a valve initially contains 100 kg of air at a pressure of 100 kPa and 300 K. At time t = 0, the valve for the air tank is opened in a controlled manner and air leaks out isothermally (constant temperature) of the tank at a constant mass flow rate of 1 kg/s. The valve is closed after 75 seconds. Answer the following questions: Assuming air is an ideal gas, what is...
need help with these 3 questions im stuck! A closed tank having a volume of 62...
need help with these 3
questions im stuck!
A closed tank having a volume of 62 L is filled with 0.1 kg of a gas. A pressure gauge attached to the tank reads 270 kPa when the gas temperature is 20°C. Assuming ideal gas behaviour, the gas in the tank is most likely: cross out Select one: O a. Air; O b. Carbon dioxide; c. Oxygen; cross out cross out d. None of the above cross out An open (to...
31 AL Figure P9.28 it 29. A sample of an unknown material appears to weigh 300....
31
AL Figure P9.28 it 29. A sample of an unknown material appears to weigh 300. N in air and 200. N when immersed in alcohol of specific grav- ity 0.700. What are (a) the volume and (b) the density of the material 30, An object weighing N in air is immersed in water after being tied to a string connected to a balance. The scale now reads 265 N. Immersed in oil, the o object appears to weigh 275...
A U-tube contains liquid of unknown density. An oil of density 770 kg/m³ is poured into...
A U-tube contains liquid of unknown density. An oil of density
770 kg/m³ is poured into one arm of the tube until the oil column
is 13.5 cm high. The oil-air interface is then 4.5 cm above the
liquid level in the other arm of the U-tube. Find the density of
the liquid.
A raft is made of 11 logs lashed together. Each is 38.0 cm in
diameter and has a length of 7.00 m. How many people (whole number)...
1. A rigid (constant volume) tank sealed by a valve initially contains 100 kg of air at a pressure of 100 kPa and 300 K. At time t = 0, the valve for the air tank is opened in a controlled manner and air leaks out isothermally (constant temperature) of the tank at a constant mass flow rate of 1 kg/s. The valve is closed after 75 seconds. Answer the following questions: Assuming air is an ideal gas, what is...
need help with these 3
questions im stuck!
A closed tank having a volume of 62 L is filled with 0.1 kg of a gas. A pressure gauge attached to the tank reads 270 kPa when the gas temperature is 20°C. Assuming ideal gas behaviour, the gas in the tank is most likely: cross out Select one: O a. Air; O b. Carbon dioxide; c. Oxygen; cross out cross out d. None of the above cross out An open (to...
31
AL Figure P9.28 it 29. A sample of an unknown material appears to weigh 300. N in air and 200. N when immersed in alcohol of specific grav- ity 0.700. What are (a) the volume and (b) the density of the material 30, An object weighing N in air is immersed in water after being tied to a string connected to a balance. The scale now reads 265 N. Immersed in oil, the o object appears to weigh 275...
A U-tube contains liquid of unknown density. An oil of density
770 kg/m³ is poured into one arm of the tube until the oil column
is 13.5 cm high. The oil-air interface is then 4.5 cm above the
liquid level in the other arm of the U-tube. Find the density of
the liquid.
A raft is made of 11 logs lashed together. Each is 38.0 cm in
diameter and has a length of 7.00 m. How many people (whole number)...
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