Understanding Standard Temperature and Pressure

What is the definition of pressure?

• The amount of mass per unit area

• The amount of force applied per unit area

• The amount of force applied per unit volume

• The amount of energy transferred per unit time

Which of the following is a scalar quantity?

• Pressure

• Acceleration

• Velocity

• Force

What does the ideal gas law equation PV = nRT represent?

• Pressure and volume are inversely proportional

• Pressure and temperature are directly proportional

• Pressure and the number of moles are inversely proportional

• Volume and temperature are inversely proportional

What happens to atmospheric pressure as you ascend to higher altitudes?

• It remains constant

• It decreases

• It fluctuates randomly

• It increases

How does pressure change as you go deeper underwater?

• It fluctuates randomly

• It increases

• It remains constant

• It decreases

What is the SI unit of temperature?

• Celsius

• Fahrenheit

• Kelvin

• Rankine

What is absolute zero in Kelvin?

• 273.15 K

• 0 K

• 32 K

• 100 K

What is the standard temperature in degrees Celsius?

• 100 degrees Celsius

• 273.15 degrees Celsius

• 0 degrees Celsius

• 32 degrees Celsius

What is the standard pressure in atmospheres?

• 0.5 atmospheres

• 1.5 atmospheres

• 1 atmosphere

• 2 atmospheres

What happens when two objects of different temperatures come into contact?

• The hotter object gets hotter

• The colder object gets colder

• They reach thermal equilibrium

• They both lose energy