Seawater, which covers the majority of the earth, is composed primarily of molecules of H20 and equal numbers of Nations and Clions. Suppose we have a thoroughly mixed solution (containing these species only) at 25°C. How many components and how many phases are in such a system?

a. 1 component, 1 phase
b. 1 component, 2 phase
c. 1 component, 3 phase
d. 1 component, 4 phase
e. 2 component, 1 phase
f. 2 component, 2 phase
g. 2 component, 3 phase
h. 2 component, 4 phase
i. 3 component, 1 phase
j. 3 component, 2 phase
k. 3 component, 3 phase
l. 3component, 4 phase
m. 4 component, 1 phase
n. 4 component, 2 phase
o. 4 component, 3 phase
p.4 component, 4 phase

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