Problems 1. How does a sample of gas differ in its behavior from a sample of liq

Question

Problems

1.

How does a sample of gas differ in its behavior from a sample of liquid in each of the following situations?

a.The sample is transferred from one container to a larger one.

b.The sample is heated in an expandable container, but

no change of state occurs.

c.The sample is placed in a cylinder with a piston, and an external force is applied.

2.Are the particles in a gas farther apart or closer together than the particles in a liquid? Use your answer to explain each of the following general observations:

a. Gases are more compressible than liquids.

b. Gases have lower viscosities than liquids.

c. After thorough stirring, all gas mixtures are solutions

3. On a cool, rainy day the barometric pressure is 730 mmHg. Calculate the barometric pressure in centimeters of of water (cmH2O) (d of Hg = 13.5g/mL; d of H2O = 1.00 g/mL)

answer with explantions plz

Explanation / Answer

1.a:The gas wil occupy the entire voume available to it whereas the liquid's volume will remain the same,because the gas molecules have negligible forces of interaction and occupy the entire volume available to them.Liquid have strong intermolecular forces and thus liquid molecules stay together.

1.b:The gas will expand on being heated that is its voume will increase;for liquid the volume change will be neqligible.As the gases have poor intermolecular forces of attraction compared to liquids.

1.c:The gas will compress as its intermolecular distance is large whereas the liquid won't as the intermolecular distance of liquids is small.

2Molecules(particles) are furthwer apart in gases than in liquids due to weaker intermolecular forces of attraction in gases than in liquids.

Thus

2a:Gases are more compressible than liquids as gases have more intermolecular distances than liquids

2b:Lower viscosities as the molecules are far apart they do not exert appreciable forces on each other to retard their motion.

2c:After stirring all gases mix because of large intermolecular distances.The molecules of gases mix properly between the large intermolecular distances.

3.Pressure = Density of liquid*Height of liquid column*acceleration due to gravity:

P=hwdwg=hmdmg;

given:hm=730mm;

hw=9855mm=985.5cm

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