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Heat Conductivity
When considering the design of houses, the heat conductivity by walls, roofs, and the floor plays an significant role. The heat conductivities (λ) of some building materials are explained in Table 1.
Calculate the heat flow by a wall of 150 m2 (typical of a single-family house in Central Europe) that consists of a brick layer with a thickness of d = 24 cm and by the same wall that consists, though, of a brick layer with a thickness of d = 36 cm. There is a temperature of 25°C inside and 10°C outside.
ACID-BASE TITRATIONS Titration curves: An acid-base titration is a useful experimental method for determining also the amount of an unknown acid or base in solution and th
Q. Illustrate about square planar complexes? For square planar complexes Mu, Ma3b or Mab3 where a and b etc., are monodentate ligands, again the geometrical isomerism is not p
The standard EMF of Pt/H2(g)/HCl(aq)//AgCl(aq)/Ag has been experimentally determined from 0-90?C to yield the following; E?/V =0.23659 – 4.856 * 10-4t(?C) – 3.4205 * 10-4t2(?C) +
what is molality?
K c is the equilibrium constants when the concentrations are expressed in moles/litre K c = Product of concentrate ions of products / product of concentrate ions of reactants
The total number of unpaired electrons in d- orbital's of atoms of element of atomic number 29 is: (1) 10 (2) 1 (3) 0 (4)5 Ans: 0
The expression for Bohr's radius of an atom is: (1) r= n 2 h 2 / 4 Π 2 me 4 z 2 (2) r= n 2 h 2 / 4 Π me 2 z 2 (3) r= n2h2/4 Π me 3
concentration on acetic acid
find the equivalent weight of KMnO4
Explain why electrolysis of aqueous solution of NaCl gives H 2 at cathode and Cl 2 at anode. Write overall reaction
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