Multiple Choice
At standard temperature and pressure (STP), 5.00 mol of an ideal gas occupies approximately what volume in liters?
73
views
7. Gases
Standard Temperature and Pressure
Multiple Choice
Which of the following correctly defines the conditions for standard temperature and pressure (STP) in chemistry?
A
0°C and 760 mmHg
B
0°C and 1 atm
C
25°C and 1 atm
D
273 K and 1 atm
Verified step by step guidance1
Understand that Standard Temperature and Pressure (STP) is a set of conditions commonly used in chemistry to define a reference state for gases.
Recall that the standard temperature is defined as 0°C, which is equivalent to 273 K. This is important because temperature in gas law calculations must be in Kelvin.
Recognize that the standard pressure at STP is 1 atmosphere (atm), which is equivalent to 760 mmHg or 760 torr. These units are interchangeable but 1 atm is the conventional unit used in STP definitions.
Combine these two conditions to define STP as 0°C (273 K) and 1 atm pressure. This is the internationally accepted standard for STP in chemistry.
Note that 25°C and 1 atm is often used as Standard Ambient Temperature and Pressure (SATP), which is different from STP.
Related Videos
Related Practice
