Question

What is the percentage change in temperature gradient in stage II over that in stage III?

• A. 40
• B. 33.33
• C. 50
• D. cannot be determined

Answer 1

The correct option is C 50

Temperature gradient in stage II = $\left(\frac{75-25}{100}\right)$ = $\frac{1}{2}$ deg C /min

Temperature gradient in stage III = $\left(\frac{25-(-5)}{90}\right)$ = $\frac{1}{3}$deg C/min

So percentage change = $\left(\frac{0.5-0.33}{0.33}\right)$ = 50%