Calculate the specific weight, density of specific gravity of 1 litter of a liquid which weight 7N?

To calculate the specific weight, density, or specific gravity of a liquid, we need to know the volume of the liquid. In this case, we are given that the liquid weighs 7N, but we are not given the volume.

Specific weight is defined as the weight of a substance per unit volume. It is calculated using the formula:

Specific weight = Weight / Volume

Density is defined as the mass of a substance per unit volume. It is calculated using the formula:

Density = Mass / Volume

Specific gravity is the ratio of the density of a substance to the density of a reference substance (usually water). It is calculated using the formula:

Specific gravity = Density of substance / Density of water

Since we are given that the liquid weighs 7N, we can convert this to kilograms (1N = 0.102 kg) to make the calculations easier.

7N = 7 * 0.102 kg = 0.714 kg

Now, we need to convert the volume of 1 liter to cubic meters (1 liter = 0.001 cubic meters).

Specific weight = 0.714 kg / 0.001 m^3 = 714 N/m^3

Density = 0.714 kg / 0.001 m^3 = 714 kg/m^3

Specific gravity = 714 kg/m^3 / 1000 kg/m^3 = 0.714

Therefore, the specific weight of the liquid is 714 N/m^3, the density is 714 kg/m^3, and the specific gravity is 0.714.