Which gas has the highest density at the same temperature and pressure?
Practice Questions
Q1
Which gas has the highest density at the same temperature and pressure?
He
Ar
N2
CO2
Questions & Step-by-Step Solutions
Which gas has the highest density at the same temperature and pressure?
Step 1: Understand what density means. Density is how much mass is in a certain volume.
Step 2: Know that gases can have different densities depending on their molecular weight.
Step 3: Compare the molecular weights of the gases you are considering. The heavier the gas, the higher its density at the same temperature and pressure.
Step 4: Identify the gases you are comparing. For example, if you are comparing CO2, O2, and N2, look up their molecular weights.
Step 5: Find the molecular weight of CO2, which is about 44 g/mol.
Step 6: Compare CO2's molecular weight with the others. O2 is about 32 g/mol and N2 is about 28 g/mol.
Step 7: Conclude that CO2 has the highest molecular weight among the gases compared.
Step 8: Therefore, CO2 has the highest density at the same temperature and pressure.
