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A house is air conditioned using solar energy. Solar radiation heats a pressurized tank such that the temperature is maintained at 175oC. 1500 kJ must be extracted from the house to maintain the temperature at 24oC when the ambient temperature is 33oC.
Determine the minimum amount of heat that must be extracted from the tank of water by any device built to accomplish the required cooling of the house
A 2kg piece of copper at 200oC is taken out of a furnace and is allowed to cool in air with an ambient temperature of 25oC. Calculate the entropy change in the universe as a result of this process. The Cp of copper is 0.38 kJ/kg K.
CALCIUM CARBONATE TEST METHOD
how do your store hydrogen peroxide, nitric acid, sulfuric acid, hydrochloric acid, potassium permanganate, ammonium sulfate and silver nitrate in equatorial places (phil)? should
Q. Determine the Uniqueness of Carbon? Ans. Carbon forms a very large number of compounds--over 4,000,000. This is far more than the number of compounds of all other eleme
diagonal relationships
why lanthanides and actinides are known as inner transition elements
Explain the statement "Water has bent geometry" Water has bent geometry; that is, the H-O-H bond angle is approximately tetrahedral. Repulsion among the lone pairs and the bond
what is degree of freedom?
Among the bonds formed by a chlorine atom with atoms of hydrogen, chlorine, sodium and carbon, the strongest bond is formed between (1) H- cl
Azimuthal quantum number for last electron of Na atom is: (1) 1 (2) 2 (3) 3 (4) 0 Ans: 0
The total number of valence electrons in 4.2 gm N-3 of ion is ( NA is the Avogadro''s number): (1) 1.6NA
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