Which of the following shows the maximum rise in temperature?
0°C to 10°C
−4°C to 8°C
−15°C to −8°C
−7°C to 0°C
“Rise in temperature” means final temperature − initial temperature.
Write it as: \( Delta T = ext{final} - ext{initial} \).
Option A: from \(0^circ!C\) to \(10^circ!C\)
\( Delta T = 10 - 0 \)
\( Delta T = 10^circ!C \)
Option B: from \(-4^circ!C\) to \(8^circ!C\)
\( Delta T = 8 - (-4) \)
\( Delta T = 8 + 4 \)
\( Delta T = 12^circ!C \)
Option C: from \(-15^circ!C\) to \(-8^circ!C\)
\( Delta T = (-8) - (-15) \)
\( Delta T = -8 + 15 \)
\( Delta T = 7^circ!C \)
Option D: from \(-7^circ!C\) to \(0^circ!C\)
\( Delta T = 0 - (-7) \)
\( Delta T = 7^circ!C \)
Compare: \(10^circ!C,,12^circ!C,,7^circ!C,,7^circ!C\)
Maximum rise is \(12^circ!C\).
Correct option: B (\(-4^circ!C\) to \(8^circ!C\)).