How many strokes of the hand pump assuming no leakage or heating effects, would be needed to inflate — States of Matter and Gaseous State Chemistry Question

💡 Solution & Explanation

Volume of 1 stroke = $4 \text{ cm}^2 \times 25 \text{ cm} = 100 \text{ cm}^3 = 0.1 \text{ L}$. The tire requires $8 \text{ bar} \times 1 \text{ L} = 8 \text{ bar-L}$ of air. Each stroke delivers $1 \text{ bar} \times 0.1 \text{ L} = 0.1 \text{ bar-L}$. Total strokes = $8 / 0.1 = 80$. Therefore, correct answer is C.