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Two identical cylinders at same temp. Co...

Two identical cylinders at same temp. Contains hydrogen at 2.5 atm. And oxygen at 1.5 atmosphere. If both the gases were filled in one of the cylinders, what will be the pressure?

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According to Dalton's law of partial pressures. `p = p_(1)+p_(2) = 2.5 +1.5 = 4.0` atmosphere.
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