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The density of air refers to the mass per unit volume of atmospheric gases. The Greek letter ρ (rho) is used to denote it. The density of air depends upon the atmospheric temperature, pressure and humidity. Dry air has a density of 1.29 gram per litre at 0 degree Celsius (32 degrees Fahrenheit) at average sea level.
8. The density of chlorine relative to air having density 14.4 is: A)2.44 B)3 C)71 D)4. View Solution. Q2
Calculate its pay-load, if it is filled with He at 1.0 atm and 27 ∘ C. Density of air is 1.2 kg m-3. (Given: R = 0.082 L atm K − 1 m o l − 1 ) View Solution
Question 1 The mass per unit volume of a substance is called density (density = mass/volume). Arrange the following in order of increasing density - air, exhaust from chimney, honey, water, chalk, cotton, and iron.
The density of air is 0.001293 g/ml at STP. Its vapour density will be: View Solution. Q3
The densities of air at 25 o C and 100 o C are 1.2 g L − 1 and 0.9 g L − 1 respectively. Assuming that the air obey's Charle's law the value of absolute zero of temperature in degree Celsius is: Assuming that the air obey's Charle's law the value of absolute zero of temperature in degree Celsius is:
The height of a mercury barometer is 75 cm at sea level and 50 cm at the top of a hill. Ratio of density of mercury to that of air is 10 4.
ρ = density, kg/m 3, or g/(cm) 3. m = mass, in kg or g. V = volume, in m 3 or (cm) 3. Here, ρ = density, m = mass, and v = volume. Solved Example on Density Formula. Q1. Find out the density of a cube of sugar which weighs 12 grams and measures 2 cm on a side? Answer: This question can be completed in two steps
First we derive an expression for density of a gas. Density = v o l u m e (V) m a s s (w) but we know that PV = nRT now n = M w where M is molecular weight So, PV = M w R T this gives V w = R T P M = density = d Clearly at a constant temperature, P 1 d 1 = P 2 d 2 so since pressure is tripled, density also triples new density = old density x 3
If air contains N2 and O2 in volume ratio 4:1, the average vapuor density of air is. View Solution ...
