Density of air containing only N2 and O2 is 1.146 g/l and 700mm and 300 Kelvin.what is the percentage composition of and N2 by weight in the air.

Cl2 has a molecular mass of 71 g. And molecular mass of Air is 29 g . Relative density of chlorine =( Mass of chlorine/ Volume of chlorine) / (Mass of air/...

ΔG0 = – RT lnKc  ΔG0 = – 8.314 × 300 × ln( 2×1013 )  ΔG0 = – 7.64 ×104 J/mol.

 The weight of the liquid displaced by the object will be (a) 2 N

Molecular mass of glucose (C6H12O6) = 6 × 12 + 1 × 12 + 6 × 16 = 72 + 12 + 96 = 180 g  %of carbon(C) in glucose =...

Kelvin is an SI unit of temperature, where 0°C = 273 K (a) 25°C = 25 + 273 = 298 K  (b) 373°C = 373 + 273 = 646 K

(a) 298 K, 311 K and 339 K

Correct Answer is: (d)  Sound is transmitted by particles (atoms or molecules) in a solid, liquid or gas colliding with each other. It is a wave which is created by vibrating...

Answer: M = P xd x 10/M.M2 .

(a) W2 = W1. (c) W2 < W1+ W. EXPLANATION:   The weight of the empty balloon is W₁. The weight of the balloon filled with air should be W₁+w but the balloon is...

(d) cannot be compared with its value in water. EXPLANATION:  The velocity of sound in a fluid is given as V =√(B/ρ) where B is the bulk modulus and ρ is the...