1) how many feet are contained in 0.344 km, given that 1 mi=1.609 km and 5280 ft= 1 mile
2) if the density of carbon dioxide in air is 0.65g/L, what volume is occupied by 25 kg of carbon dioxide?
1)
1 mile = 1.609 km
1 mile = 5280 feet
so
1.609 km = 5280 feet
1 km = 5280 / 1.609 feet
1 km = 3281.54 feet
now
0.344 km = 0.344 x 3281.54 feet
= 1128.85 feet
0.344 km = 1128.85 feet
2)
density (d) = 0.65 g /L
mass of CO2 = 25 kg = 25000 g
density = mass / volume
volume = mass / density
= 25000 / 0.65
= 38461.54 L
volume occupied by 25 kg of carbon dioxide = 38461.54 L
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