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Questions and Answers
Which of the following is a purpose of expansion joints in bridges?
Which of the following is a purpose of expansion joints in bridges?
- To improve the aesthetics of the bridge
- To prevent cracks in the concrete
- To increase the strength of the bridge
- To allow for temperature-induced expansion and contraction (correct)
What is temperature?
What is temperature?
- A measure of the amount of heat in a system
- A measure of the kinetic energy in a system
- A measure of the energy of motion in a system (correct)
- A measure of the thermal equilibrium of a system
What happens when there is a temperature difference between two systems?
What happens when there is a temperature difference between two systems?
- There is no heat transfer between the systems
- The systems reach thermal equilibrium
- The hotter system transfers heat to the colder system (correct)
- The colder system transfers heat to the hotter system
What is thermal equilibrium?
What is thermal equilibrium?
How does the temperature of a system change?
How does the temperature of a system change?
Which property of a solid can change based on a change in temperature?
Which property of a solid can change based on a change in temperature?
What is the equation used to describe linear expansion?
What is the equation used to describe linear expansion?
What happens to the volume of a gas when the temperature is increased while holding the pressure constant?
What happens to the volume of a gas when the temperature is increased while holding the pressure constant?
Which law states that as the pressure of a gas is increased while holding the temperature constant, the volume of the gas will decrease?
Which law states that as the pressure of a gas is increased while holding the temperature constant, the volume of the gas will decrease?
What does the coefficient of volume expansion represent?
What does the coefficient of volume expansion represent?
According to the ideal gas law, what is the equation that relates pressure, volume, temperature, and the number of moles of a gas?
According to the ideal gas law, what is the equation that relates pressure, volume, temperature, and the number of moles of a gas?
What does the symbol 'n' represent in the ideal gas law equation?
What does the symbol 'n' represent in the ideal gas law equation?
What is the universal gas constant denoted by 'R' in the ideal gas law equation?
What is the universal gas constant denoted by 'R' in the ideal gas law equation?
How does the pressure of a gas change when the temperature is increased while the volume is held constant?
How does the pressure of a gas change when the temperature is increased while the volume is held constant?
How many moles of air were inside the car when driving to class in the morning, given the following information: pressure = 101,325 Pascals, volume = 5 meters cubed, temperature = 285 Kelvin?
How many moles of air were inside the car when driving to class in the morning, given the following information: pressure = 101,325 Pascals, volume = 5 meters cubed, temperature = 285 Kelvin?
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