Advertisements
Advertisements
Question
Give a reason why –
Solids have a definite volume & a definite shape.
Solution
Any matter that is solid has a definite shape and a definite volume. The molecules in a solid are in fixed positions and are dose together. Although the molecules can still vibrate, they cannot move from one part of the solid to another part. As a result, a solid does not easily change its shape or its volume.
APPEARS IN
RELATED QUESTIONS
Give two example of the following:
The substances which do not change their state on heating.
Define the following term.
Element
Fill in the blank:
Water boils at ............
Write whether the following statement is true or false.
There is no difference between evaporation and boiling.
Write whether the following statement is true or false.
The intermolecular force of attraction is the weakest in gases.
Give reason of A gas fills up the space available to it.
Fill in the blank
Molecules in a ________ are packed very closely.
A crystal of iodine is placed in a closed flat bottom flask and heated. State how you would conclude from the observations seen, that interparticle space is minimum in solids and maximum in gases.
Mr. Raghu returns home on a hot summer day and wants to have buttermilk. Mrs. Raghu has the only curd. What can she do to get buttermilk? Explain
You are provided with a mixture of naphthalene and ammonium chloride by your teacher. Suggest an activity to separate them with well labelled diagram.
