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Suppose that at the end of Reaction 1 the level of the aqueous solution were 26 cm higher inside the buret than outside. Compared to ambient pressure, the pressure of the gas inside the buret would be:A.lower.B.the same.C.2 times greater.D.26 times greater.

Question

Suppose that at the end of Reaction 1 the level of the aqueous solution were 26 cm higher inside the buret than outside. Compared to ambient pressure, the pressure of the gas inside the buret would be:A.lower.B.the same.C.2 times greater.D.26 times greater.

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Solution

The pressure of the gas inside the buret would be higher than the ambient pressure. This is because the liquid level is higher inside the buret than outside, indicating that the gas inside the buret is under more pressure to support the extra height of the liquid.

However, the pressure would not be 2 times or 26 times greater. The pressure difference is equivalent to the weight of the extra height of the liquid. In this case, the extra height is 26 cm.

In terms of atmospheric pressure, this is a relatively small increase. Atmospheric pressure is equivalent to the weight of a 760 cm column of mercury. The weight of a 26 cm column of water (which is less dense than mercury) is much less than this.

So, the correct answer is A. lower.

This problem has been solved

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