Thermodynamics quiz
Quiz by sean
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16 questions
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- Q1The temperature of a gas is increasing in a sealed container. Which answer choice best explains what is happening to the molecules in the container.The container has more molecules in it.The average kinetic energy has decreasedThe average speed of the molecules has increasedThe potential energy of the molecules has decreased.60s
- Q2A hot balloon is placed into a cold room. What will happen to the thermal energy of the balloon and the room.The balloon will increase in thermal energy, and the room will decrease in thermal energy.The balloon will decrease in thermal energy, and the room will increase in thermal energy.The balloon and the room will not change their thermal temperatures.The balloon and the room will both increase in their thermal temperature.60s
- Q3Which of the following places the phases of matter in order from most to least energetic?Gas, Liquid, Solid, Plasma.Plasma, gas, liquid, solidSolid , gas, Liquid, PlasmaPlasma, liquid, solid, gas60s
- Q4The number of collisions between molecules and the random movement of the molecules in a gas has decreased. What happened to the gas?The temperature of the gas decreased.The entropy of the gas changedThe temperature of the gas increased.The thermal energy of the gas increased.60s
- Q5The temperature at which the molecules of a substance have no kinetic energy. This is an example of which vocabulary term?EquilibriumThermal EnergyAbsolute ZeroKinetic Energy60s
- Q6If the temperature of a gas increases 4 times over. What happened to its kinetic energy?The kinetic energy decreases by 4 times.The kinetic energy decreases by 2 times.The kinetic energy increases by 4 times.The kinetic energy increases by 2 times.60s
- Q7What is the temperature of Absolute Zero?0 Celsius0 Kelvin-273 Kelvin273 Celsius60s
- Q8As the temperature of a confined gas rises the kinetic energy of that gas increases and the speed of the molecules increase. This is an example of which theory of thermodynamics?The third law of thermodynamicsThe second law of thermodynamicsKinetic Molecular TheoryThe first law of thermodynamics60s
- Q9The air pressure in a basketball is lower when it is placed in outside in cold weather. The lower air pressure is most likely due to which of the following?The molecules escaping the basketball.A decrease in the speed of the molecules in the basketball.An increase in molecular potential energy.The basketball getting bigger.60s
- Q10Using the picture, during which interval is the average kinetic energy of the molecules unchanged?D-EA-BC-DE-F60s
- Q11What is mutual thermodynamic Equilibrium?Heat tends to flow from regions with lower temperature to ones with higher temperature.Heat tends to flow from regions with higher temperature to ones with lower temperatures.Heat tends to stay in one place and not move around.60s
- Q12Which of the following is an example of entropy decreasing?A room getting more messy over time as it is not cleaned.Shards of glass from a broken bottle being dropped onto the floor and reforming as the unbroken glass.A glass bottle falling to the floor and breaking into shards.Rocks being eroded into sand.60s
- Q13The temperature of a refrigerant increases as it passes through the metal coils in the interior of a refrigerator because the air inside the refrigerator transfers heat to the coils. This is an example of what kind of heat transfer.RadiationConductionConvection60s
- Q14How could you transfer heat from a cold region in a refrigerator to a hotter one?Add a motor do work.Open the door.Add a fan.60s
- Q15How could we decrease the entropy of water?Boil it.Freeze it.Heat it up.Turn it into a gas.60s