Question

complete the table below. round your answers to the nearest degree. temperature in $^circ$c in k the freezing point of grain alcohol. $-114.^circ$c $square$ k the melting point of gallium metal. $30.^circ$c $square$ k the melting point of iron. $1538.^circ$c $square$ k

Explanation:

To convert from Celsius ($^\circ$C) to Kelvin (K), we use the formula $K = ^\circ C + 273.15$. We will apply this formula to each temperature.

Step 1: Freezing point of grain alcohol

Given temperature in $^\circ$C is $-114^\circ$C.
Using the formula $K = -114 + 273.15$.
Calculating this: $-114 + 273.15 = 159.15$. Rounding to the nearest degree, we get $159$ K.

Step 2: Melting point of gallium metal

Given temperature in $^\circ$C is $30^\circ$C.
Using the formula $K = 30 + 273.15$.
Calculating this: $30 + 273.15 = 303.15$. Rounding to the nearest degree, we get $303$ K.

Step 3: Melting point of iron

Given temperature in $^\circ$C is $1538^\circ$C.
Using the formula $K = 1538 + 273.15$.
Calculating this: $1538 + 273.15 = 1811.15$. Rounding to the nearest degree, we get $1811$ K.

Answer:

For the freezing point of grain alcohol: $\boxed{159}$ K
For the melting point of gallium metal: $\boxed{303}$ K
For the melting point of iron: $\boxed{1811}$ K