Consider a gas confined to a horizontal container by means of a piston of area 40 cm 2 . If a horizontal force 20 N is exerted on the piston to keep the gas from expanding, find the gas pressure. Atmo

Question

Consider a gas confined to a horizontal container by means of a piston of area $40 cm^{2}$ . If a horizontal force 20 N is exerted on the piston to keep the gas from expanding, find the gas pressure. Atmospheric pressure is 100 kPa.

Options:

Answer:

B

Solution:

$P_{gas} = P_{atm} + \frac{F}{A} = 100 \times 1 0^{3} + \frac{20}{40 \times 1 0 ^{- 4}} = 105.0 kPa$ .

TestHub · Accepted Answer

P gas ​ = P atm ​ + A F ​ = 100 × 1 0 3 + 40 × 1 0 − 4 20 ​ = 105.0 kPa .

Physics - Heat & Thermo Question with Solution | TestHub

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