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)
How many strokes of the hand pump assuming no leakage or heating effects, would be needed to inflate the tire?
Options:
Answer:
C
Solution:
The gas filling the tire at 8 bar in 1 L is equivalent to 8 × 1 = 8 L of air measured at atmospheric pressure (1 bar). Each stroke delivers 4 cm2 × 25 cm = 100 cm3 = 0.1 L of air at 1 bar. Number of strokes = 8/0.1 = 80. Hence (c).
Stream:JEESubject:ChemistryTopic:Ideal GasSubtopic:Ideal Gas Equation & problems
⏱ 2mℹ️ Source: QB
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