Question

2) The conical flask contains compound X which is present in solid, liquid and gaseous states. gaseous X Which statement is correct?

A) a gaseous X molecule has a lower mass than a liquid X molecule.

B) energy is released when X changes from liquid to solid.

C) Liquid X is at a higher temperature than solid X.

D)
Liquid X molecules vibrate about fixed positions. ​

Answer 1

Answer to the given question

Explanation:

• In the given question, Conical flask contains compound in solid, liquid and gaseous states.

• A liquid is a incompressible fluid that take shape according to the container but retains constant volume independent of the pressure.

• So it is asking about the statement from all the option which is correct.

• Only 2nd option is correct which means energy is given out when it is changing from liquid to solid.

Answer 2

option A is the right answer.

Explanation:

• A gaseous X molecule has a lower mass than a liquid X molecule.
• Liquid molecules have a distinct volume but no distinct shape.
• The volume and structure of gas molecules are indeterminate.
• It is necessary to have a closed container to hold gas molecules.
• When compared to liquid and solid molecules, their molecular attraction is less.