Engineering, 15.04.2020 22:47, clewis57
The atomic radii of a divalent cation and a monovalent anion are 0.77 nm and 0.136 nm, respectively.1- Calculate the force of attraction between these two ions at their equilibrium interionic separation (i. e., when the ions just touch one another).2-What is the force of repulsion at this same separation distance?
Answers: 1
Engineering, 04.07.2019 19:20, lordcaos066
Determine the time of the day and month of the year at which the peak sensible cooling load occurs for a top floor, north-eastern corner room of an office building in durban for the following conditions: floor area: 8 x 8 x 3 m east and north walls: 115 mm face brick (outside), 20 mm air space, 115 mm ordinary brick (inside) with 15 mm plaster roof construction: suspended plasterboard ceiling, 450 mm air space, 150 mm concrete, 75mm screed, waterproofing no heat transfer across other surfaces window area 3x 1,5 m high in north wall only. ordinary glass with venetian blinds. lights and occupants : from 07: 00 to 18: 00 average light density: 25 w/m2 number of occupants : 5 seated, light office work room temperature 24°c
Answers: 3
The atomic radii of a divalent cation and a monovalent anion are 0.77 nm and 0.136 nm, respectively....
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