conduction, convection, and radiation
Causes of law of variable proportions
the average variable cost curve and average cost curve are u- shaped because of the law of variable proportions.
The law of variable proportions, often discussed in economics, describes how the output of production changes as one input variable is modified while others remain constant. In mathematics, this concept can be applied to analyze relationships between variables in functions, particularly in calculus and optimization. For example, by examining how changes in one variable affect the output of a function, mathematicians can derive insights about marginal returns, similar to how the law of variable proportions informs economic production processes. Thus, both fields explore the dynamics of change and proportionality in their respective contexts.
what is relationship between change in input and output. In the return's to scale (long term concept) all the factor are variable but in the variable proportions are some factor variable and some factors are fixed.
A chemical combination of two or more substances in variable proportions is called a mixture. Mixtures can be either homogeneous (uniform composition throughout) or heterogeneous (non-uniform composition).
The law you are referring to is the Law of Definite Proportions. This law states that a chemical compound always contains the same elements in the same proportions by mass, regardless of the source of the compound.
The law of definite proportions was developed by Joseph Proust in 1806.
The law of multiple proportions was proposed by John Dalton in 1804; today this law has not a general validity.
For example the law of definite proportions.
Dalton\'s principle of compounds supports the law of definite proportions.
The Law of Multiple Proportions was developed by John Dalton based on the Law of Definite Proportions, was part of what laid the groundwork for his atomic theory, and for the basis of chemical formulas for compounds.English chemist John Dalton
In was in 1799 that Joseph Proust discovered the law of definite proportions, or Proust's Law. Proust was a French chemist.