Admin Table of Contents
- 1 What is the mass of a cubic meter of air at room temperature 20 C?
- 2 How many molecules of air are in a cubic meter?
- 3 When a gas in a container is squeezed to half its volume at constant temperature its density?
- 4 How much co2 is in a cubic meter of air?
- 5 What is the volume of 1 mol of gas in NTP?
- 6 What is the density of 1 cubic meter of air?
What is the mass of a cubic meter of air at room temperature 20 C?
At 20 °C and 101.325 kPa, dry air has a density of 1.2041 kg/m3.
How many molecules of air are in a cubic meter?
10 trillion trillion molecules
Each cubic meter of air on Earth contains about 10 trillion trillion molecules. This falls to around 4 trillion trillion at the top of Mount Everest. A hundred kilometers up, sometimes considered to be the border of space, there are around a million trillion molecules per cubic meter.
How much oxygen is in a cubic meter of air?
If air is 21% molecular oxygen, then we would need 62.22/0.21, or 296.3 liters of air to provide that much molecular oxygen. Since 1 cubic meter equals 1000 liters, this volume converts to 0.3 cubic meters of air. Therefore, 0.3 cubic meters of air contains the same amount of oxygen as is present in 100 ml of water.
How much is the mass of air?
Components in Dry Air Oxygen has a molar mass of 15.9994 g/mol and nitrogen has a molar mass of 14.0067 g/mol. Since both of these elements are diatomic in air – O2 and N2, the molar mass of oxygen gas is 32 g/mol and the molar mass of nitrogen gas is 28 g/mol. The molar mass of dry air is 28.9647 g/mol.
When a gas in a container is squeezed to half its volume at constant temperature its density?
Since dividing a number by a fraction is the same as multiplying the number by the reciprocal of the denominator, the density doubles when the volume is halved which is choice C.
How much co2 is in a cubic meter of air?
In response to a recent post by John Cook on George Pell, religion and climate change, commenter Glenn Tamblyn pointed out an interesting fact: Every cubic metre of air contains roughly 10,000,000,000,000,000,000,000 molecules of CO2.
What is the weight of 12 Litre oxygen?
150gm
Product Name – Allcares oxygen can Product Weight – 150gm Gas Content – 12 Ltr.
What is the average density of air at NTP?
NTP is defined as air at 20 degrees C (293.15 K, 68 degrees F) and 1 atm (101.325 kN/m 2, 101.325 kPa) of pressure. The average density of air at NTP is 1.204 kg/m 3 (0.075 pounds per cubic foot).
What is the volume of 1 mol of gas in NTP?
NTP is commonly used as a standard condition for testing and documentation of fan capacities: 1 NTP – Normal Temperature and Pressure – is defined as air at 20oC (293.15 K, 68oF) and 1 atm (101.325 kN/m2, 101.325… 2 At these conditions, the volume of 1 mol of a gas is 24.0548 liters. More
What is the density of 1 cubic meter of air?
Air weighs 0.0012929 gram per cubic centimeter or 1.2929 kilogram per cubic meter, i.e. density of air is equal to 1.2929 kg/m³. In Imperial or US customary measurement system, the density is equal to 0.080713 pound per cubic foot [lb/ft³], or 0.00074734 ounce per cubic inch [oz/inch³] .
What is the mass of air in a cubic meter at STP?
So 1 mole of atmospheric gases has a mass of 28.8 g at STP. Consequently the mass of air in a cubic meter at STP is [math] 44.6 \imes 28.8 g = 1.28 [/math] kg.