Question

An ideal gas exert a pressure of $1.52MPa$ when temperature is $298.15K$ and its volume is ${10}^{-2}{m}^3$. How many moles of gas are there?

• A. $2.135mol$
• B. $9.135mol$
• C. $7.135mol$
• D. $6.135mol$

Answer 1

The correct option is D $6.135mol$

From the ideal gas equation $PV=nRT$,

$(1.52\times {10}^6)\left({10}^{-2}\right)=n\left(8.314\right)\left(298.15\right)$

$n=\frac{1.52\times {10}^4}{8.314\times 298.15}=6.135mol$