The computation for this problem is: (1.55x10^4 / 1.0x10^3) x 19.8 mm Hg = 15.5 x 19.88 mm Hg = 308.14 mm Hg decrease = 308.14 x 0.05 C = 15.407 deg C deduct this amount to 100 100 – 15.407 = 84.593 C ANSWER: 85 deg C (rounded to 2 significant figures)