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4 years ago

Liquids are similar to gases in that they both have

Chemistry

2 answers:

Wewaii [24]4 years ago

7 0

Liquids are similar to gases in that they both have no definite shape.

wel4 years ago

3 0

The correct answer is B. No definite shape

Explanation:

Gas and liquid are two different states of matter. In these states, particles move more freely than in a solid-state. Due to this characteristic, in both liquids and gases, there is not a defined shape; instead, liquids and gases adapt to the container or space where they are, although gases occupy all the space in a container. Besides this, they differ because gases do not have a defined volume as this can change through compression, while liquids have a defined volume. Thus, one similarity between gases and liquids is that they do not have a defined shape (option B).

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2 years ago

A mixture of three gases has a pressure at 298 K of 1380 mm Hg. The mixture is analysed and is found to contain 1.27 mol CO2, 3.

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Answer:

The partial pressure of Ar is 356.04 mm Hg (= 0.4685 atm)

Explanation:

Step 1: Data given

A mixture of three gases has a total pressure of 1380 mm Hg (=1.81579 atm) at 298 K

Moles of CO2 = 1.27 moles

Moles of CO = 3.04 moles

Moles of Ar = 1.50 moles

Step 2: Calculate total number of moles

Total number of moles = n(CO2)+ n(CO)+ n(Ar) = 1.27 mol+ 3.04 mol+ 1.50 mol = 5.81 moles

Step 3: Calculate mol fraction Ar

Mol fraction Ar = 1.50 mol/5.81 mol = 0.258

Step 4: Calculate partial pressure

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The partial pressure of Ar is 356.04 mm Hg (= 0.4685 atm)

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