1.

If the value of Avogadro number is6.023 xx 10^(23) mol^(-1) and the value of Boltzmann constant is 1.380 xx 10^(-23)J K^(-1), then the number of significant digits in the calculated value of the universal gas constant is

Answer»


SOLUTION :`K= (R)/(N_(A)):. R = k.N_(A)`
`=6.023 xx 10^(23)xx1.380 xx10^(-23)J.mol^(-1) .k^(-1)`
There are 4 significant figures in each term.
HENCE, these be 4 significant FIGURE in R.


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