A baloon of diameter 20m weight 100kg .calculate its payload . if it is filled with He at 1.0atm & 27°c density of aim is 1.2kgm -³ {R = 0.00821 dm³ atm k-¹mol-¹}
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Hii !!
Solution :- weight of baloon = 100 kg = 10 × 10⁴ g
volume of balloons = 4/3πr³
= 4/3 × 22/7 × (20/2× 100)³ = 4190× 10³ litre
weight of gas ( He) in balloon = Pvm / RT
= 1 × 4190 * 10³×4 /0.0821× 300 = 68.13 × 10⁴g
total weight of balloon = 68.13 × 10⁴ + 10× 10⁴
= 78.13× 10⁴g
weight of air displaced = 1.2 × 4190 × 106/10³
= 502.8× 10⁴g
•°• Pay load = wt. of air displaced - ( wt of balloon + wt . of gas )
•°• Pay load = 502× 10⁴ = 424.67 × 10⁴g Answer
____________________________
Hope it helps you !!!
@Rajukumar111
Solution :- weight of baloon = 100 kg = 10 × 10⁴ g
volume of balloons = 4/3πr³
= 4/3 × 22/7 × (20/2× 100)³ = 4190× 10³ litre
weight of gas ( He) in balloon = Pvm / RT
= 1 × 4190 * 10³×4 /0.0821× 300 = 68.13 × 10⁴g
total weight of balloon = 68.13 × 10⁴ + 10× 10⁴
= 78.13× 10⁴g
weight of air displaced = 1.2 × 4190 × 106/10³
= 502.8× 10⁴g
•°• Pay load = wt. of air displaced - ( wt of balloon + wt . of gas )
•°• Pay load = 502× 10⁴ = 424.67 × 10⁴g Answer
____________________________
Hope it helps you !!!
@Rajukumar111
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Answer:raju sir is rght
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