Question

Scientists agreed upon a Standard Temperature and Pressure (STP) to study the properties of gases to be consistent amongst their measurements. Temperature is 0°C (or 273 K) and pressure is 1.00 atm. Use the ideal gas law to determine the volume of one mole of any gas at STP (the molar volume).

a) 22.4L
b) 11.2L
c) 0.0446L
d) Cannot determine unless identity of gas is provided

Answer 1

At Standard Temperature and Pressure (STP), the volume of one mole of any ideal gas is about 22.4 liters. This standard molar volume applies to all ideal gases and is independent of their chemical identity.

Step-by-step explanation:

The student is asking to determine the volume of one mole of any gas at Standard Temperature and Pressure (STP). Using the ideal gas law, we can calculate this volume. The conditions at STP are defined as a temperature of 0°C (273.15 K) and a pressure of 1 atm (101.325 kPa). Under these conditions, one mole of an ideal gas has a volume of about 22.4 L. This is known as the standard molar volume. It is important to note that this volume is independent of the gas's chemical identity, and any ideal gas under these conditions will have the same molar volume.