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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.
The heat loss can be minimized by using a layer of polystyrene foam. Calculate the heat loss by a 10 cm polystyrene insulation foam. The wall area again is 150 m2.
A covered glass tube contains 2.25g of copper and 3.32g of sulphur. The mass of the tube as well as its contents is 18.48 g. Upon heating a chemical reaction forms copper(II) sulph
explain vsepr thheory
What is Dielectric loss These losses occur because of electrons hopping from one lattice site to another in transition metal oxides.
Potassium permanganate is prepared from pyrolusite (MnO 2 ) . Pyrolusite is fused with KOH in the presence of atmospheric oxygen or an oxidising agent like potassium nitrate or po
what is primary standard and secondary standard?
The nucleus of the element 21E^45 contains
Q. What is conclusion in the experiment? A conclusion is a judgment based on the data acquired in the experiment. If data support a hypothesis then the hypothesis is tentativ
suppose n mmol of solute A in Vaq ml of aqueous solution is extracted with Vorg ml of animmiscible organic solvent. at equilibrium n1 mmol of A will remain in the aqueous layer and
Hno3 is aded to Ag ION then form Agcl so from where cl ion come
Rutherford's scattering experiment is related to the size of the: (1) Nucleus (2) Atom (3) Electron (4) Neutron Ans: Nucleus
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