1 a During lecture my temperature rose by 12 K How many degr

1. a) During lecture my temperature rose by 12 K. How many degrees Fahrenheit did it increase?

b) An extremely cold popsicle is at 80 K. What temperature is this in Fahrenheit?

c) Room temperature is typically around 20°C. What temperature is this in Fahrenheit?

d) If the room heated up from 20 to 40°C, how many degrees Fahrenheit did it rise?

e) If a room heated up from 70 to 95°F, how many degrees Rankine did it rise?

Solution

1. (a) Increase in degrees Fahrenheit = (9/5)*12 = 21.6 degree F.

(b) In degree Celsius = 80 - 273.15 = -193.15

Now: (C/5) = (F-32)/9, so F = -315.67 degree F

(c) (C/5) = (F-32)/9, so F = 32 + (9C/5) = 68 degree F

(d) Increase in degrees Fahrenheit = (9C/5) = 9*20/5 = 36 degree F

(e) Chnages in degree F and degree R are same. So, in Rankine scale, it will rise by 25 degree Rankine.