Help with an chemistry temp. problem please?

Question

A scientific oven is programmed to change temperature from 65.7 ºF to 224.7 ºF in 1.50 minute(s). Express the rate of change in degrees Celsius per second. With sig fig's i think there will be 3 digits.

any help is welcomed and thanked!!! THANKS ALOT!

Answer 1

First, convert Fahrenheit to Celsius.  The formula is:

C = (F-32) * (5/9)

So F = 65.7 converts to C = 18.722

     F = 224.7 converts to C = 107.055

Now, find the difference in temperature:  107.055 - 18.722 = 88.334 C

Then convert minutes to seconds: 1.50 * 60 = 90 s

Rate of change = 88.334 / 90 = 0.981 C/s

Answer 2

First, convert the two temperatures to degrees celsius.

65.7 F = 18.7222 C

224.7 F = 107.0556 C

1.50 minutes = 90 seconds

107.0556 C - 18.7222 C= 88.3334 K (same size as celius, but without the offset for 0).

88.3334 K / 90.0 seconds = 0.9815 K / s

Watch your order of operations, so the subtraction happens first.

Answer 3

wowo i have no idea