Concept explainers
Interpretation:
The largest balloon has to be identified.
Concept Introduction:
The ideal
The volume of a gas is directly proportional to the number of moles when pressure (P) and temperature (T) remain constant.
Answer to Problem 5STP
The largest balloon contains hydrogen gas.
So the answer is option A.
Explanation of Solution
Data given: Mass of each gas is 10.0 g
Number of moles of gas = Mass/ Molar mass
As, the volume of a gas is directly proportional to the number of moles when pressure (P) and temperature (T) remain constant. The volume is inversely proportional to the molar mass.
Among the given gases the molar mass of H2 is the least.
Molar mass of H2 = 2 g/mol
Molar mass of He = 4 g/mol
Molar mass of O2 = 32 g/mol
Having minimum molar mass hydrogen has largest volume.
Reasons for incorrect options:
From the explanation we see that the largest balloon contains the hydrogen gas.
So the answer is option A.
That means other options that is,
B. He
C. O2
D. Each of the balloons is the same size. are found to be incorrect.
Chapter 13 Solutions
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