Advertisements
Advertisements
Question
The density of air is 1.28 g/Iitre. Express it in g cm-3
Solution
The density of air is I .28g/litre
It is in g `"cm"^-3` = `1.28/1000`=0.00128 g `"cm"^-3`
APPEARS IN
RELATED QUESTIONS
The density of a liquid decreases with increase in its temperature.
Arrange the following substances in order of their increasing density:
Iron, Cork, Brass, Water, Mercury.
How does the density of a liquid (or gas) vary with temperature?
A given quantity of a liquid is heated. Which of the following quantity will vary and how?
(a) mass, (b) volume and (c) density
The density of air is 1.28 g/Iitre. Express it in kg m-3
The dimensions of a hall are 10 m × 7 m × 5 m. If the density of air is 1.11 kg m-3, find the mass of air in the hall.
State true or false. If false, correct the statement.
A substance which contains less number of molecules per unit volume is said to be denser.
Two spheres of same size are made from copper and iron respectively. Find the ratio between their masses (Density of copper is 8,900 kg/m and iron is 7,800 kg/m3 ).
A sphere of radius 1cm is made from silver. If the mass of the sphere is 33g, find the density of silver (Take π = 3.14).
Questions based on Higher Order Thinking Skills:
There are three spheres A, B, C as shown below. Sphere A and B are made of same material. Sphere C is made of a different material. Spheres A and C have equal radii. The radius of sphere B is half that of A. Density of A is double that of C.
Now answer the following questions.
- Find the ratio of masses of spheres A and B.
- Find the ratio of volumes of spheres A and B.
- Find the ratio of masses of spheres A and C.
