Which one of the following indicates the corr | vedclass

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(A) The universal gas constant $R$ has different values depending on the units used: $1$. In $SI$ units,$R = 8.314 \, J \, K^{-1} \, mol^{-1}$. $2$. I

Vedclass · Accepted Answer

$1.987 \, cal \, K^{-1} \, mol^{-1}$

Vedclass · Answer

(A) The universal gas constant $R$ has different values depending on the units used: $1$. In $SI$ units,$R = 8.314 \, J \, K^{-1} \, mol^{-1}$. $2$. In terms of calories,since $1 \, cal \approx 4.184 \, J$,we have $R = \frac{8.314}{4.184} \approx 1.987 \, cal \, K^{-1} \, mol^{-1}$. $3$. In terms of pressure-volume units,$R = 0.0821 \, L \, atm \, K^{-1} \, mol^{-1}$. Comparing these with the given options,option $A$ is the correct value.

Which one of the following indicates the correct value of the gas constant $R$?

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