Physics question, volume, pressure and temperature.........
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Physics question, volume, pressure and temperature.........

[From: ] [author: ] [Date: 11-11-18] [Hit: ]
9 mm Hg . Find the volume of the nitrogen when its pressure is changed to 400.0 mm Hg while the temperature is held constant.A 40.0 L tank of ammonia has a pressure of 8.00 atm.......
question no 1
1 m^3 of nitrogen at 1.2 atm is used for blanketing a tank containing vegetable oil at room temperature. assuming the pressure remains constant what will be the volume occupied by the blanketing gas if temperature drops to 18 deg Celsius.

question no 2
a tank of nitrogen has volume of 14.0L and a pressure of 760.9 mm Hg . Find the volume of the nitrogen when its pressure is changed to 400.0 mm Hg while the temperature is held constant.

question no 3
A 40.0 L tank of ammonia has a pressure of 8.00 atm. calculate the volume of the ammonia if its pressure is changed to 12.0 atm, while its temperature remains the constant.

question no 4
200 litre of helium at 2.00 atm, and 28.0 Celsius is placed into the tank with an internal pressure of 600.0 kPa. find the volume of helium after it is compressed into the tank when the Temperature of the tank remains 28.0 Celsius.

thanks
also I would like to ask that, my teacher has asked me to write a report inert gases and they are used in tank blanketing

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question no 1
1 m^3 of nitrogen at 1.2 atm is used for blanketing a tank containing vegetable oil at room temperature. assuming the pressure remains constant what will be the volume occupied by the blanketing gas if temperature drops to 18 deg Celsius.
What is the room temperature?
V/T is constant
You must change the temperature to Kelvin.
18C = 18 +273 = 291K

question no 2
a tank of nitrogen has volume of 14.0L and a pressure of 760.9 mm Hg . Find the volume of the nitrogen when its pressure is changed to 400.0 mm Hg while the temperature is held constant.
PV is constant.
760.9 x 14 = 400 x V
question no 3
A 40.0 L tank of ammonia has a pressure of 8.00 atm. calculate the volume of the ammonia if its pressure is changed to 12.0 atm, while its temperature remains the constant.
PV is constant
40 x 8 = 12 x V
question no 4
200 litre of helium at 2.00 atm, and 28.0 Celsius is placed into the tank with an internal pressure of 600.0 kPa. find the volume of helium after it is compressed into the tank when the Temperature of the tank remains 28.0 Celsius.
PV is constant
1 atmosphere = 100,000Pa = 100kPa
so 600kPa = 6 atmospheres
200 x 2 = 6 x V


I'll let you have the satisfaction of working them out.
1
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