Question

The element bromine turns into a liquid at -7 degrees Celsius and turns into a gas at 59 degrees Celsius. From the temperature at which bromine becomes a liquid, by how many degrees must the temperature change for it to turn into a gas?(A)-66 degrees Celsius(B)-52 degrees Celsius(C)52 degrees Celsius(D)66 degrees CelsiusJohnathan chose C as his answer. How did he get the answer?

Answer 1

Answer:

(D)66 degrees Celsius.

Explanation:

Bromine turns into a liquid at -7 degrees Celsius.

It turns into a gas at 59 degrees Celsius.

To determine how many degrees the temperature must change for it to turn into a gas, we find the difference.

i.e

Final Temperature - Initial Temperature

$\begin{gathered} 59^0C-(-7^0C) \\ =59^0C+7^0C \\ =66^0C \end{gathered}$

Jonathan chose C as his answer. Jonathan obtained his result by adding instead of subtraction.