Nitrogen dioxide gas is dark brown in color and remains in equilibrium with dinitrogen tetroxide gas, which is colorless. 2NO2(g
) ⇌N2O4(g) When the mixture was moved from room temperature to a higher temperature, the mixture turned darker brown. Which of the following conclusions about the mixture is true? The forward reaction is exothermic. The backward reaction has a negative net enthalpy. The colorless gas has a higher enthalpy than the brown gas. The equilibrium between the two forms of the gas is disturbed at high temperatures.
Le Châtelier's principle states that when there is an dynamic equilibrium, and this equilibrium is disturbed by an external factor, the equilibrium will be shifted in the direction that can cancel the effect of the external factor to reattain the equilibrium.
When the mixture turned darker brown, this means that the reaction is shifted towards the left direction (reactants side).
The temperature is increased and the reaction shifted to the reverse direction, this means that the forward direction is exothermic.
Exothermic reaction releases heat and when increasing the temperature, the reaction will be shifted to the reverse direction to suppress the effect of increasing the temperature.
<em>So the right choice is: The forward reaction is exothermic. </em>
The correct approach will be the "Linguistic-relativity hypothesis".
Explanation:
This theory can be defined as either the Hypothesis of Sapir-Whorf. This theory proposes whether our cognitive capabilities are influenced by languages as well as decide how we start behaving and communicate throughout society.
Sapir Whorf explains these variations throughout the nature of human language throughout the manner a person understands the world.
I am pretty sure that I know what Anna is working on, given that she wants to find the patterns of demographic variation, is population structure. This structure deals with variations in age, gender, and other qualities of a population, and I believe that is what she wants to find out. So the answer to your question would be that population structures are the patterns of demographic variation.
