Which of the following is a unit commonly used to measure pressure?

• A. mol (mole)
• B. L (liter)
• C. K (kelvin)
• D. atm (atmosphere)

Answer: (D)

Verified step by step guidance

1. Understand that pressure is defined as force applied per unit area and is a measure of how much force is exerted on a surface.
2. Recall the common units used to measure pressure, such as atmospheres (atm), pascals (Pa), torr, and millimeters of mercury (mmHg).
3. Recognize that mol (mole) is a unit for the amount of substance, not pressure.
4. Recognize that L (liter) is a unit of volume, not pressure.
5. Recognize that K (kelvin) is a unit of temperature, not pressure, so the correct unit for pressure among the options is atm (atmosphere).