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Exercício de Escalas Termométricas
Exercício:
Olá. Eu sei que a reposta para o exerício é 228, mas não sei como resolver. Obrigado!
(VUNESP-FMC) – Um bloco metálico, sólido, encontra-se a uma temperatura ambiente de 22ºC, quando é levado para o interior de um forno a 250ºC. Após entrar em equilíbrio térmico com o forno, o bloco terá sofrido uma variação de temperatura que, expressa em escala Kelvin, vale.
R: 228.
Informações Adicionais:
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em um laboratorio de pesquisa um cientista mediu a temperatura na qual
um certo gas se liquefez obtendo um valor extremamente baixo.
qual dos valores segunintes voce acha que podria ter cido encontrada
por ele explica!
TC/5=TK-273/5
250/5=TK-273/5
5TK-1365=1250
5TK=1250+1365
5TK=2615
TK=523K
O que você fez foi só subtrair 250 de 22, e não é isso que a questão pede,ela pede o resultado em kelvin.O equilíbrio térmico alcançado quando a temperatura do bloco sólido fica igual a temperatura interna do forno,sendo assim a temperatura é 250°C.Para passar de °C para K utilize a fórmula acima.
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