• Matéria: Química
  • Autor: bianca12100
  • Perguntado 8 anos atrás

Converta as temperaturas abaixo em graus Celsius: a) 25 °F. b) 135 °F. c) 270 K. d) 350 K

Respostas

respondido por: Anônimo
42
Converta as temperaturas abaixo em graus Celsius: a) 25 °F. b) 135 °F. c) 270 K. d) 350 K

A) Passar 25 °F para °C

\dfrac{TC}{5} =\dfrac{TF - 32}{9} \\\\\\ \dfrac{TC}{5} =\dfrac{25 - 32}{9} \\\\\\ \dfrac{TC}{5} =\dfrac{-5}{9} \\\\\\ 9TC = 5\cdot(-5) \\\\\\ 9TC = -25 \\\\\\ TC =\dfrac{-25}{9} \\\\\\ TC = -2,77

Resposta : -2,77 °C

B) 135 °F para °C

\dfrac{TC}{5} =\dfrac{TF - 32}{9} \\\\\\ \dfrac{TC}{5} =\dfrac{103}{9} \\\\\\ 9TC = 5\cdot103 \\\\\\ 9TC = 515 \\\\\\ TC =\dfrac{515}{9} \\\\\\ TC = 57,2

Resposta : 57,2 °C

C) 270 K para °C

 TC = TK - 273,15 \\\\\\ TC = 270 - 273,15 \\\\\\ TC = -3,15

Resposta : -3,15 °C

D) 350 K para °C

 TC = TK - 273,15 \\\\\\ TC = 350 - 273,15 \\\\\\ TC = 76,85


Resposta : 76,85 °C

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