Diffrent between bryophytes and pteriodphytes
1 answer:
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Answer:
16311 lbs
Explanation:
Volume of the cylinder = πr²l
= π (10 cm)² x 20cm
=3.14 x 100 x 20 cm³
= 6283 cm³
=6283 ml
6283 ml - 25 ml = 6258 ml
= 6.258 l ( since 1 l = 1000 ml )
PV = nRT
n =
P = 760 mm
V = 6.258 l
R = 0.082057 l. atm/mol.K
n=?
n =
= 0.2559 mol/air
T = 298 K
mass of Nitrogen = 25ml
density = 0.807 g/ml
mol mass of nitrogen =28.0134 g/mol
= (25ml x 0.807 g/ml) ÷ (28.0134 g/mol)
= 0.72019 mol N₂
Total mol = 0.2559 +0.72019 = 0.9761 mol
P=( n ×R × T) ÷ V
V = 6.283l ; R = 0.082057 l ; T = 298K ;n = 0.9761
∴ P = 3.799 atm
F = P × SA ( Force = pressure × surface Area )
P = 3.799atm
SA = 2πr² + 2πrl
= 2π ( 0.0010m) + 2π (0.0010m) (0.020m)
= 0.188496 m²
∴ Force F = 384934 × 0.1884
= 72558 N = 16311 lbs