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Estudo dos gasesFísico-QuímicaPUC

Qual o volume ocupado, a 2 atm de pressão, por…

(PUC-PR) Qual o volume ocupado, a 2 atm de pressão, por certa massa de gás ideal que sofre transformações isotérmicas conforme o gráfico?

Qual o volume ocupado, a 2 atm de pressão, por certa massa de gás ideal

a) 42 cm3

b) 14 cm3

c) 21 cm3

d) 126 cm3

e) É impossível calcular, pois faltam dados.

Resolução

De acordo com o gráfico, o gás ocupa 42 cm3 (Vi) quando a pressão é igual a 6 atm (Pi). Dessa forma, para calcular o volume do gás (Vf) a 2 atm (Pf), basta utilizarmos a lei de Boyle:

Gabarito: LETRA D

Confira mais EXERCÍCIOS RESOLVIDOS sobre ESTUDO DOS GASES.

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