Convert the following temperatures from degrees Celsius to degrees Kelvin: 0 degrees C, 30 degrees C, 100 degrees C.

Conversion from degree Celsius to Kelvin :

1.

0° C = 0 + 273.15 = 273.15 K

2.

30 ° C = 30 + 273.15 = 303.15 K

3.

100° C = 100 + 273.15 = 373.15 K

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.