Which of the following gases has the highest density at STP?
Practice Questions
Q1
Which of the following gases has the highest density at STP?
He
Ar
N2
CO2
Questions & Step-by-Step Solutions
Which of the following gases has the highest density at STP?
Step 1: Understand what STP means. STP stands for Standard Temperature and Pressure, which is 0 degrees Celsius and 1 atmosphere of pressure.
Step 2: Know that density is mass divided by volume. We need to compare the densities of the gases given.
Step 3: Look up the molar mass of each gas. For example, CO2 (carbon dioxide) has a molar mass of about 44 g/mol.
Step 4: Use the ideal gas law to find the density of each gas at STP. The formula is density = (molar mass) / (molar volume at STP, which is 22.4 L/mol).
Step 5: Calculate the density for each gas using the formula from Step 4.
Step 6: Compare the calculated densities of all the gases.
Step 7: Identify which gas has the highest density from your comparisons.
