Question

A sample of pure X was slowly heated from -5.0 °C, which is below its melting point, to 90 °C, which is above its boiling point. Its temperature is measured every minute and the results are represented on the graph.​

Answer 1

Answer:

. Compound X is a colourless liquid at room temperature, (a) A sample of pure X was slowly heated from -5.0 °C, which is below its melting point, to 90

*C, which is above its boiling point. Its temperature is measured every minute and the

results are represented on the graph.

F

90°C-

D

E

temperature

B

t°C

С

-5°C

time

Explanation:

Hope its helps you plz mark me asa barinlist answer

Answer 2

Answers for the following

Given:

A sample of pure X was slowly heated from -5.0 °C,

melting point, to 90 °C

TO Find:

Q1)Complete the equation for the equilibrium present in the region BC?

Q2)  What is the significance of temperature t °C?

Q3) What is the physical state of compound X in the region EF?

Q4) What would be the difference in the region BC if an impure sample of X had been used?

EXPLANATION:

Q1 ANSWER:

• the equation for the equilibrium present in the region BC IS :

                     ==>     (X(s) ↔)  X(l)

Q2 ANSWER:

• the significance of temperature t °C:

                  ==>   melting point/freezing point (of X)

Q3 ANSWER:

• the physical state of compound X in the region EF:

                   ==>  gas/gaseous or vapor

Q4 ANSWER:

• the difference in the region BC if an impure sample of X had been used:

                  ==> not horizontal or line slopes or line is lower