In the world’s coldest freezer, sodium gas was cooled to a temperature of 78.5°C below zero and then cooled 194.65°C more. What was the new temperature of the sodium gas?

Question

–273.15°C
–272.7°C
–202.5°C
–116.15°C

Answer 1

To find the new temperature of the sodium gas, we start with the initial temperature and then subtract the additional cooling.

The initial temperature is \( -78.5°C \).

Next, we cool it down by \( 194.65°C \):

\[ \text{New Temperature} = -78.5°C - 194.65°C \]

Calculating this:

\[ -78.5 - 194.65 = -273.15°C \]

So, the new temperature of the sodium gas is:

\[ \boxed{-273.15°C} \]