Question

Um fluido é submetido à variação de
temperatura de 150K. Determine essa
variação nas escalas Celsius e Fahrenheit.
a) 140°C e 200°F.
b) 150°C e 220°F.
c) 150°C e 250°F.
d) 150°C e 270°F.

tava assim aqui na apostila ​

Answer 1

$\mathrm{Para\ se\ comparar\ uma\ varia\c{c}\tilde{a}o\ de\ temperatura\ entre\ escalas}\\ \mathrm{termom\acute{e}tricas,\ h\acute{a}\ a\ seguinte\ rela\c{c}\tilde{a}o}\text{:}$

$\boxed{\dfrac{\Delta T_C}{5}=\dfrac{\Delta T_F}{9}=\dfrac{\Delta T_K}{5}}$

$\mathrm{Se}\ \Delta T_K=150\ K,\ \mathrm{as\ varia\c{c}\tilde{o}es\ nas\ escalas\ Celsius\ e\ Fahrenheit\ ser\tilde{a}o}\text{:}$

$\Delta T_C=\Delta T_K\Longrightarrow\ \boxed{\Delta T_C=150^{\circ}\mathrm{C}}$

$\Delta T_F=\dfrac{9}{5}\Delta T_K\Longrightarrow \Delta T_F=\dfrac{9}{5}(150)\ \therefore\ \boxed{\Delta T_F=270^{\circ}\mathrm{F}}$

$\mathbf{Alternativa\ D.}$