Problem: Of these gases, which has the fastest-moving molecules (on average) at a given temperature?a) HBrb) NO2c) C2H6d) They all have the same average speed.Which gas molecules have the highest average kinetic energy at a given temperature?Same as above.a) HBrb) NO2c) C2H6d) They all have the same average speed.

FREE Expert Solution

 molar mass   average speed   kinetic energy

MM HBr: 80.91 g/mol

MM NO2: 46.01 g/mol

MM C2H6: 78.11 g/mol


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Problem Details

Of these gases, which has the fastest-moving molecules (on average) at a given temperature?

a) HBr

b) NO2

c) C2H6

d) They all have the same average speed.

Which gas molecules have the highest average kinetic energy at a given temperature?

Same as above.

a) HBr

b) NO2

c) C2H6

d) They all have the same average speed.

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