Some Basic Concepts Of Chemistry Question 298

Question: The unit J $ P{a^{-1}} $ is equivalent to

Options:

A) $ m^{3} $

B) $ cm^{3} $

C) $ dm^{3} $

D) None of these

Show Answer

Answer:

Correct Answer: A

Solution:

JPa­­?1; Unit of work is Joule and unit of pressure is Pascal. Dimension of Joule i.e. work $ =F\times L $ $ =ML{T^{-2}}\times L $

$ =[ ML^{2}{T^{-2}} ] $

$ \frac{1}{Pa}=\frac{1}{Pressure}=\frac{1}{\frac{F}{A}}=\frac{1\times A}{F}=[ ML{T^{-1}} ] $

So, JPa?1 $ =[ ML^{2}T^{2} ] $ $ =[ L^{2}\times L ]\ =[ L^{3} ] $ .



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