Scelta multipla
Which of the following is NOT considered a standard state under standard temperature and pressure (STP) conditions?
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7. Gases
Standard Temperature and Pressure
Scelta multipla
At standard temperature and pressure (STP), what is the molar volume of an ideal gas?
A
2.4 L
B
1.0 L
C
22.4 L
D
11.2 L
Guida verificata passo dopo passo1
Recall that the molar volume of an ideal gas is the volume occupied by one mole of the gas at standard temperature and pressure (STP).
Understand that STP is defined as a temperature of 0°C (273.15 K) and a pressure of 1 atm.
Use the Ideal Gas Law equation: \(P \times V = n \times R \times T\), where \(P\) is pressure, \(V\) is volume, \(n\) is number of moles, \(R\) is the ideal gas constant, and \(T\) is temperature in Kelvin.
Set \(n = 1\) mole, \(P = 1\) atm, and \(T = 273.15\) K, and use the value of \(R = 0.0821 \frac{L \cdot atm}{mol \cdot K}\) to solve for \(V\).
Rearrange the Ideal Gas Law to solve for volume: \(V = \frac{n \times R \times T}{P}\), then substitute the known values to find the molar volume at STP.
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