Question

Which of the following is NOT a phase change?

Condensation.
Boiling.
Sublimation.
Radiation.
@Abhisar

Answer 1

Sublimation?

Answer 2

Do you know the meaning of phase ?

Answer 3

no

Answer 4

Then how were you answering these questions ?

Answer 5

I remember somethings from my reading but not everything so i donot remember meanings

Answer 6

Phase means state of matter like solid, gas and liquid are the three phases. E.g. Water is liquid phase, ice is solid phase and water vapor is gas phase.

Answer 7

i pick up on random things

Answer 8

right i know that

Answer 9

radiation is a form a chemical

Answer 10

but i don't remember sublimation in my reading at all

Answer 11

Now,
`Condensation` is conversion of gas to liquid
`Sublimation` is conversion of solids directly into gas

Answer 12

ah

Answer 13

so radiation is my answer as it is would not be part of a phase

Answer 14

Have you heard about dry ice ?

Answer 15

yes

Answer 16

It's an example of sublimation.

Answer 17

ah

Answer 18

and yes the answer to this question is radiation

Answer 19

ok

Answer 20

i see