Dimensions of pressure are same as that of

Dimensions of pressure are the same as that of

At what temperature will the values of $^\circ C$ and $^\circ F$ be equal?

If the value of Avogadro number is $6.023 \times 10^{23} \ mol^{-1}$ and the value of Boltzmann constant is $1.380 \times 10^{-23} \ J \ K^{-1}$,then the number of significant digits in the calculated value of the universal gas constant is

Calculate the reported result and the number of significant figures for $(41.6325 - 41.612)$.

One atmosphere is numerically equal to approximately