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Você já deve ter percebido que fica difícil abrir a porta de um freezer imediatamente após ter sido fechada. Isso acontece porque a pressão interna do freezer fica menor que a pressão externa. Para verificar essa queda de pressão, considere que um freezer, regulado para manter a temperatura em seu interior a -19 °C, foi fechado e ligado quando a temperatura ambiente estava a 27 °C e que o ar no interior do freezer se comporte como um gás ideal.
Assinale a alternativa que apresenta, corretamente, a pressão no interior do freezer após um certo intervalo de tempo de funcionamento.
A.
0,70 atm
B.
0,75 atm
C.
0,80 atm
D.
0,85 atm
E.
0,90 atm
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Answers: 1
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