Question

Three substances A, B, and C melt at 00C,500C and -1500C

respectively and their boiling points are 1000C , 2000

C and 100C.State the physical nature of A,B and C at room temperature

Answer 1

Answer:

That information is better presented and analyzed in a table.

This table shows you all the information and the answers:


Substance melting point boiling point room temperature conclusion
°C °C °C (state)


A 0 100 25 liquid

B 50 200 25 solid
C -150 10 25 gas

Step-by-step explanation:

1) Substance A at 25° is above the melting point and below the boiling point, then it is liquid (just like water)


2) Substance B at 25°C is below the melting point, so it is solid.

3) Substance C at 25°C is above the boiling point, so it is gas.