Question

Conditions for an experimental chemistry reaction require a temperature of 300 K. The temperature in the lab is 55°F. Which of the following must you do to meet the requirements? (°F= 9/5 (K - 273) + 32

A) Decrease the room temp by 33 F
B) increase the room temp by 26F
C) Increase the room temp by 18 K
D) decrease the room temp by 12 C

Answer 1

300 degrees Kelvin = 300 - 273 = 27 degrees Celsius.

So what you need to do is find out how many degrees Fahrenheit that is.

F = 9/5(27) + 32

F = 48.6 + 32

F = 80.6

You are at 55oF. You need to go from 55 to 80.6 or 25.6 degrees F.

Your closest answer is B. <<<<<< Answer

Answer 2

B) increase the room temp by 26°F

Step-by-step explanation:

From the given information:

Room temperature = 55 °F

Required temperature = 300 K

Conversion from K to °F:

`F = 9/5(K-273) + 32\\\\For T = 300 K\\\\F = 9/5(300-273)+32 = 80.6F`

The required temperature in °F = 80.6°F

Therefore, the lab temperature must be increased by:

`(80.6-55)F = 25.6 F`