Question

1. (4 pts) what is 39°c in °f? a. 102.2°f b. 3.9°f c. 102°f d. 128°f e. none of the above 19. (4 pts) what is 212.0°c in k? a. 485k b. 485.1k c. 485.15k d. 485.2k e. none of the above

Explanation:

Step1: Convert Celsius to Kelvin

The formula to convert Celsius ($T_{C}$) to Kelvin ($T_{K}$) is $T_{K}=T_{C}+273.15$.
Given $T_{C} = 212.0^{\circ}C$, substitute into the formula: $T_{K}=212.0 + 273.15$.

Step2: Calculate the value

$T_{K}=212.0+273.15 = 485.15K$.

Step1: Convert Celsius to Fahrenheit

The formula to convert Celsius ($T_{C}$) to Fahrenheit ($T_{F}$) is $T_{F}=\frac{9}{5}T_{C}+32$.
Given $T_{C} = 39^{\circ}C$, substitute into the formula: $T_{F}=\frac{9}{5}\times39 + 32$.

Step2: Calculate the value

First, calculate $\frac{9}{5}\times39=9\times7.8 = 70.2$. Then $T_{F}=70.2+32=102.2^{\circ}F$.

Answer:

1. a. $102.2^{\circ}F$
2. b. $485.15K$