Question

The dimensional formula for entropy is

• A. [ $MLT^{- 2}K^{- 1}$ ]
• B. [ $ML^{2}T^{- 2}$ ]
• C. [ $ML^{2}T^{- 2}K^{- 1}$ ]
• D. [ $ML^{- 2}T^{- 2}K^{- 1}$ ]

Answer 1

Answer: (C)

$Entropy=\frac{h e a t}{t e m p e r a t u r e} \, $ $\left(\right. \text{Δ} Q = T \text{Δ} S \left.\right)$
[Entropy]= $\frac{Q}{T}=\frac{\left[\right. M L^{2} T^{- 2} \left]\right.}{\left[\right. K \left]\right.}=\left[\right.ML^{2}T^{- 2}K^{- 1}\left]\right.$