States of Matter - SS1 Chemistry Past Questions and Answers - page 3
A gas sample has an initial volume of 2.0 L at a temperature of 273 K. If the temperature is increased to 300 K while keeping the pressure constant, using Charle’s law what will be the new volume of the gas?
According to Charles's law, the volume of a gas is directly proportional to its temperature in Kelvin at constant pressure.
V1 / T1 = V2 / T2
Substituting the given values, we have:
(2.0 L) / (273 K) = V2 / (300 K)
Solving for V2:
V2 = (2.0 L x 300 K) / (273 K) = 2.191 L (rounded to three decimal places)
Therefore, the new volume of the gas will be approximately 2.191 L.
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A gas sample has an initial volume of 10.0 L at a pressure of 2.0 atm and a temperature of 298 K. If the number of moles of gas is doubled while keeping the pressure and temperature constant, using Avogadro’s law what will be the new volume of the gas?
According to Avogadro's law, the volume of a gas is directly proportional to the number of moles at constant pressure and temperature.
V1 / n1 = V2 / n2
Substituting the given values, we have:
(10.0 L) / (1 mole) = V2 / (2 moles)
Solving for V2:
V2 = (10.0 L x 2 moles) / (1 mole) = 20.0 L
Therefore, the new volume of the gas will be 20.0 L
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Which of the following is a characteristic property of solids?
Definite shape and volume
Definite shape, but variable volume
Variable shape and volume
Variable shape, but definite volume
The intermolecular forces in solids are:
Weak
Strong
Absent
Variable
Solids have a _________ arrangement of particles.
Random
Regular and ordered
Dispersed
Chaotic
Which of the following statements is true about liquids?
Liquids have a variable shape, but definite volume.
Liquids have a definite shape and volume.
Liquids have a definite shape, but variable volume.
Liquids have a variable shape and volume.
The intermolecular forces in liquids are:
Weak
Strong
Absent
Variable
Liquids have a _________ arrangement of particles.
Random
Regular and ordered
Dispersed
Chaotic
Which of the following statements is true about the compressibility of solids and liquids?
Solids and liquids are highly compressible.
Solids are compressible, but liquids are not.
Liquids are compressible, but solids are not.
Solids and liquids are nearly incompressible.
The density of solids and liquids is typically:
Low
High
Variable
Not related to their state