Question: Which of the following gases has the highest density at STP?
Options:
He
Ar
N2
CO2
Correct Answer: CO2
Solution:
CO2 has the highest density at STP among the given gases.
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.
No concepts available.
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