Schutz American School HS CHemistry
Unit Test States of Matters and Gas
Name: ________________ Date: ________
Time: 1 hour Score: ______ / 50
Read the instruction carefully and answer the questions explicitly.
Choose the correct answer from the options given below: [10 X 1.5 = 15]
Which of the following statement about sublimation process is true? It is the process of conversion of liquid to gas
It is an endothermic process
It is an exothermic process
It is the process of conversion of gas to liquid
Which of the following phase change is NOT named correctly?
Solid to liquid - melting
Solid to gas - sublimation
Liquid to Gas – condensation
I and II
I and III
Only II
Only III
A gas that obeys all of
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Pressure
Temperature
Volume moles Which of the following affects the speed of the gas particles in a container?
Volume
Pressure
Temperature
Nature of of the gas particles
If the temperature and volume of a fixed quantity of gas changes, which of the following quantity also changes? pressure Mass density formula
A gas has a volume of 250 cm3 at a pressure of 100 kPa. What will the new volume of the gas be at a pressure of 200 kPa if the temperature remains constant? (You can do this problem without calculation as well)
500 cm3
2.5 cm3
150 cm3
125 cm3
At standard pressure, a sample of nitrogen occupies 500 mL. What volume does the gas occupy when the pressure doubles keeping the temperature constant? (You can do this problem without calculation as well)
2 mL
250 mL
380 mL
1000 mL
Which of the following quantity will be caused by the constant bombardment of gas molecules against the inside walls of a container? temperature Pressure
Density
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[ 5 x 2 = 10 ]
Raining __________________ _________________
Fumes coming off dry ice __________________ _________________
Snowing __________________ _________________
Steaming in hot coffee __________________ _________________
Neon light switch on __________________ _________________
Compare the particle motion and kinetic energy of the particles between BEC and Gas states. [2]
Ideal gas follows the postulates of the Kinetic Molecular Theory of gas. If you have a container of Ideal Gas. Mention any three properties or behaviors you expect of the gas particles in the container based on KMT of Gases.