Advertisements
Advertisements
Question
Chemical reactions may proceed with evolution of heat. Give an example.
Advertisements
Solution
Chemical reaction is characterised by evolution of heat:
\[\ce{\underset{\text{carbon}}{C} +\underset{\text{oxygen}}{O2}->\underset{\text{carbon dioxide}}{CO2} + Heat}\]
APPEARS IN
RELATED QUESTIONS
FILL IN THE BLANK
In a................ reaction heat energy is absorbed.
Identify the endothermic and exothermic reaction.
HCl + NaOH → NaCl + H2O + heat
Identify the endothermic and exothermic reaction.
\[\ce{CaO + H2O -> Ca(OH)2 + Heat}\]
Complete the statement by filling in the blank with the correct word:
The element molybdenum used in the reaction of nitrogen with hydrogen at elevated temperatures is an example of a ________.
Differentiate between the following:
A catalyst and a promoter.
Give an example with a balanced equation, of the following reaction:
endothermic reaction
Select the correct answer from the options given below:
State the gaseous product formed, when
An exothermic reaction takes place between ammonia and neutral gas.
Differentiate between the following:
Electrolytic decomposition and photochemical decomposition.
Give a scientific reason.
While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.
Give scientific reason.
While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.
