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This is the second of our many quizzes on Temperature. Click on this to access more such competitive quizzes on Physical Chemistry.

Temperature Quiz 2

chemistry

  If we increase the temperature of a chemical reaction. What is the major change we will observe, among the options?

 The rate of collisions will decide the formation of the product in a chemical reaction.

  As the temperature of the chemical reaction increases, the rate of the chemical reaction also increases in forward direction due to the enhancement of the number of collisions between the reactants in a chemical reaction.

 Find the factor which influences the rate of the chemical reaction among the given options?

 The rate of the chemical reaction is going to depend on various factors, not only on the temperature of the reaction.

  As the temperature increases, the rate of the chemical reaction also increases. The rate of the chemical reaction also depends on the nature of the reactants. If the reactants react at high temperatures only the product is formed.

 There is a semiconductor; by changing one of the factors, the semiconductor is going to act as a good conductor. Find the factor among the given options?

 A semiconductor is an object that allows the flow of electrons not in a full-fledged way. Due to the resistance in it, they will allow electricity under certain conditions only. 

 Semiconductors are going to act as a good conductor by increasing the temperature. When the temperature is increased, the distance between the conduction band and valence band is going to decrease which will result in the transition of the semiconductor to act as a conductor.

 Observe the following chemical reaction and answer the question.<img  src="https://cmds-vedantu.s3.ap-southeast-1.amazonaws.com/prod/question-sets/7fda9f36-d041-459e-985d-6f7a5d6117a24455822547269163163.png"/>$ \\ $ High temperature favours the elimination reaction due to------

 If we provide a huge amount of energy, then there is a chance of cleavage of the chemical bonds in the molecules.

 In the given chemical reaction, one reaction shows substitution and the other reaction shows elimination reaction. If we increase the temperature of the reaction, then the reactants will get a huge amount of energy and will undergo cleavage of the chemical bonds and will favor the formation of the products through elimination reaction.

  Observe the following chemical reaction. $X\underset{{{80}^{o}}C}{\overset{{{400}^{o}}C}{\longleftrightarrow}}Y\xrightarrow{{{600}^{o}}C}Z$. In this chemical reaction, the initial reaction takes place at 400$^{o}C$ and after the reaction, if we decrease the temperature to 80$^{o}C$, again the chemical X is going to form Y. Find the total temperature required to convert from X to Z.

 We have to add all the temperatures which are mentioned on the arrows to get the total temperature required to complete the chemical reaction.

The temperature required to convert  $A$ to $Y$  is $400^{o}C$ and the temperature required to convert $Y$ to $Z$ is $600^{o}C$. $ \\ $ Therefore, the amount of temperature required to convert the reactant X to Z is $ \\ = 400 + 600 = 1000^{o}C .\\ $ Here, there is no role of the backward reaction from  $Y$ to $X$  because to get $Z$ from $Y$, we are not supposed to decrease the temperature of the reaction mixture.