Chemistry - Ideal Gas Question with Solution | TestHub
ChemistryIdeal GasIdeal Gas Equation & problemsMedium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension
A pumped-up bicycle tire has a volume of about 1 litre and when properly inflated, is at a total pressure of about 8 bar. A typical hand bicycle pump has a piston cross-section area of 4 cm2 and a stroke length of 25 cm. The atmospheric pressure is 1 bar. (g = 10 ms-2)
What force would have to be applied to the hand pump to reach the final pressure?
Options:
Answer:
B
Solution:
To push air in against the final pressure of 8 bar, the piston must exert P = 8 bar = 8 × 105 Pa over the piston area A = 4 cm2 = 4 × 10-4 m2. F = PA = 8 × 105 × 4 × 10-4 = 320 N. Hence (b).
Stream:JEESubject:ChemistryTopic:Ideal GasSubtopic:Ideal Gas Equation & problems
⏱ 2mℹ️ Source: QB
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