Law of Constant Proportions Explained
The fundamental law illustrated by the fixed mass ratio of elements in a compound is the Law of Constant Proportions, also known as the Law of Definite Composition.
This law states that:
- A pure chemical compound always contains the same elements in the same proportion by mass.
- The ratio of the masses of the constituent elements is constant for a given compound, irrespective of its source or method of preparation.
In the specific case of water formation:
- Hydrogen and oxygen combine exclusively in a fixed mass ratio of approximately $1:8$.
- This consistent ratio confirms the Law of Constant Proportions, regardless of how the water is obtained or synthesized.
This principle is distinct from other chemical laws:
- Law of Conservation of Energy: Relates to energy changes during reactions.
- Dalton's Atomic Theory: Provides foundational concepts for atomic structure and behavior.
- Law of Multiple Proportions: Applies when elements form multiple compounds with different mass ratios.
The consistent $1:8$ mass ratio of hydrogen to oxygen in water is a direct confirmation of the Law of Constant Proportions.
Similar Questions
- Which law explains the colours of black bodies including the Sun and other stars in terms of their temperatures?
- Which law is most frequently applied when calculating the electric field, particularly when high symmetry is present?
- Which equipment is used to transform electrical energy into mechanical energy?
- The Law of Gravitation was given by _____.
- The following statement applies to which law from the given options?
‘The line that joins any planet to the sun sweeps equal areas in equal intervals of time.’ - Which of the following is NOT based on the Archimedes' Principle?
Who among the following is credited with the discovery of the law of conservation of mass?
Which of the following explains that during a chemical reaction, the sum of masses of the reactants and products remains unchanged?
If an object having a mass of 10 kg is moving with a velocity of 50 m/s, find the correct momentum of the object.
If a ball is thrown vertically upward, which of the following describes its velocity at the highest point?
Important Questions from Laws and Principles
TV remote controls work on the principle of ________.
Which of the following laws deduces the expression for the force between two stationary point charges in vacuum or free space?
Name the law in Physics which states that equal volume of all gases under the same conditions of temperature and pressure contain the equal number of molecules.
What do you call the effect of splitting of a spectral line into several components in the presence of a static magnetic field?
According to _____, pressure is equal to the force divided by the area on which it acts.
