Question

The heating curve below shows the temperature change that occurs as a solid is heated. What is occurring at segment CD of the graph?

Answer 1

boiling a liquid
melting a solid
heating a liquid
heating a solid

Answer 2

A heating curve shows different sections that a substance goes through.

Answer 3

First, the cold solid warms to it's melting point. (This is the upward sloping first section from left to right.)

Answer 4

Or A to B.

Answer 5

I don't think it could be boiling

Answer 6

Ok, cool.

Answer 7

DE should be boiling

Answer 8

Perfect!

Answer 9

so would it be heating?

Answer 10

Heating a solid or a liquid?

Answer 11

that is what i don't know :(

Answer 12

Ok, so you said that. DE was boiling. Is that a process that a liquid does or a solid?

Answer 13

a liquid because the that is the only one on the answer choice

Answer 14

You put heating a solid as an option...

Answer 15

The last option.

Answer 16

thanks but why?

Answer 17

I'm not saying that is the right answer. I'm saying that you still haven't narrowed it down quite enough.

Answer 18

oh

Answer 19

So, if DC is boiling, then does it make sense that a solid would warm up until it starts to boil without first changing to a liquid?

Answer 20

ohh yes that is smart! so i would choose heating a solid

Answer 21

No. Heating a solid is AB.

Answer 22

BC is melting a solid.

Answer 23

CD is heating a liquid.

Answer 24

DC is boiling a liquid.

Answer 25

DE is heating a gas.

Answer 26

oooohh i got this all mixed up. thank you for all your help!

Answer 27

No worries. :)