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  • Tell me? Calculate the radius of He atoms if its Vander Waal's constant ‘b’ is 24 ml mol-1. (Note 1 ml = 1 cubic centimeter)

Calculate the radius of He atoms if its Vander Waal's constant ‘b’ is 24 ml mol-1.   (Note  1 ml  = 1 cubic centimeter)

  • Option 1)

    1.355 \AA

  • Option 2)

    1.314 \AA

  • Option 3)

    1.255 \AA

  • Option 4)

    0.355 \AA

 

Answers (1)

best_answer

As we learnt in 

Vander waal Constant -

Vander Waal constant ‘b’ is measure of size of molecule

-

4\times \frac{4}{3}\pi r^{3}\times N_{A}= 24

 


Option 1)

1.355 \AA

Correct

Option 2)

1.314 \AA

Incorrect

Option 3)

1.255 \AA

Incorrect

Option 4)

0.355 \AA

Incorrect

Posted by

prateek

View full answer

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