Which among the following options do you think has the highest average...
The formula of average speed is given by

where R is universal gas constant, T is a temperature in Kelvin and M is the mass in kilograms. From the formula, we understand that the average speed is inversely proportional to the root over the mass. As hydrogen has the least mass among the options it has the highest average speed.
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Which among the following options do you think has the highest average...
The formula of average speed is given by

where R is universal gas constant, T is a temperature in Kelvin and M is the mass in kilograms. From the formula, we understand that the average speed is inversely proportional to the root over the mass. As hydrogen has the least mass among the options it has the highest average speed.
Which among the following options do you think has the highest average...
Explanation:
In order to determine which option has the highest average speed, we need to consider the factors that influence the speed of gas particles. The average speed of gas particles is directly proportional to the temperature and inversely proportional to the molar mass of the gas.
Given the options:
a) Chlorine (Cl2) has a molar mass of 70.90 g/mol.
b) Hydrogen (H2) has a molar mass of 2.02 g/mol.
c) Neon (Ne) has a molar mass of 20.18 g/mol.
d) Oxygen (O2) has a molar mass of 32.00 g/mol.
Comparing the molar masses:
The molar mass of hydrogen (H2) is the lowest among the given options. As the average speed is inversely proportional to the molar mass, hydrogen will have the highest average speed.
Comparing the temperatures:
The temperature is not given in the question, but assuming that the gases are at the same temperature, we can conclude that hydrogen (H2) will have the highest average speed due to its lower molar mass.
Conclusion:
Based on the molar masses and assuming the gases are at the same temperature, hydrogen (H2) will have the highest average speed.