Understanding the Concepts
* Standard Conditions (STP): Standard temperature and pressure are defined as 0°C (273.15 K) and 1 atm pressure.
* Ideal Gas Law: The ideal gas law states that PV = nRT, where:
* P = pressure (in atm)
* V = volume (in liters)
* n = number of moles
* R = ideal gas constant (0.0821 L·atm/mol·K)
* T = temperature (in Kelvin)
Calculation
1. Identify the known values:
* n = 2 moles
* P = 1 atm
* T = 273.15 K
* R = 0.0821 L·atm/mol·K
2. Rearrange the ideal gas law to solve for volume (V):
V = (nRT) / P
3. Substitute the values and solve:
V = (2 mol * 0.0821 L·atm/mol·K * 273.15 K) / 1 atm
V = 44.8 L
Therefore, 2 moles of propane gas would occupy a volume of 44.8 liters at standard conditions.
