Question

Which of the following shows a maximum rise in temperature?

• A. $0{}^{\circ }$C to $10{}^{\circ }$C
• B. $-4{}^{\circ }$C to $8{}^{\circ }$C
• C. $-15{}^{\circ }$C to $-8{}^{\circ }$C
• D. $-7{}^{\circ }$C to $0{}^{\circ }$C

Answer 1

The correct option is B $-4{}^{\circ }$C to $8{}^{\circ }$C

We know that, the rise in the temperature is equal to the difference between the two temperatures.

(a) Difference between $0{}^{\circ }$C and $10{}^{\circ }$C
$=10{}^{\circ }C-0{}^{\circ }C=10{}^{\circ }C$

(b) Difference between $-4^{\circ }$C and $8^{\circ }$C
$=8{}^{\circ }C-(-4{}^{\circ }C)=8{}^{\circ }C+4{}^{\circ }C=12{}^{\circ }C$

(c) Difference between $-{15}^{\circ }$C and $-8^{\circ }$C
$=-8{}^{\circ }C-(-15{}^{\circ }C)=-8{}^{\circ }C+15{}^{\circ }C=7{}^{\circ }C$

(d) Difference between $-7^{\circ }$C and $0^{\circ }$C
$=0{}^{\circ }C-(-7{}^{\circ }C)=0{}^{\circ }C+7{}^{\circ }C=7{}^{\circ }C$

$\therefore$ the maximum rise in temperature is $-4{}^{\circ }$C to $8{}^{\circ }$C $=12{}^{\circ }C$.