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Ideal Gas Equation from KTG

#8203;5 moles...

Question

5 moles of a gas in a closed vessel was heated from 300 K to 600 K. The pressure of the gas doubled. The number of moles of gas will be?

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Solution

$A c c o r d i n g t o i d e a l g a s e q u a t i o n p V = n R T F o r I c a s e p V = 5 \times R \times 300 F o r I I c a s e 2 p \times V = n \times R \times 600 D i v i d e t h e t w o e q u a t i o n \frac{p V = 5 \times R \times 300}{2 p \times V = n \times R \times 600} n = 5 m o l e s S o t h e n u m b e r o f m o l e s r e m a i n s t h e s a m e .$

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