1st Year Chemistry MCQS with Answers
The net heat change in a chemical reaction is same whether it is brought about in two or more different ways in one or several steps. It is knnown as
Joule’s principle
Law of combustion
Hess’s law
Henry’s law
At constant volume of a system remains constant and the heat is absorbed by the system, them amount of heat absorbed is called
Total enthalphy of the system
Total internal energy of the system
Internal energy change of the system
Enthaply change of the system
In endothermic reactions, the heat content of the
Both a and b
Products is more then that of reactants
Reactants is more than that of products
Reactant and products is equal
If an endothermic reaction is allowed to take place very rapidly in the air, the temperature of the surrounding air
Increase
Decrease
Remains constant
Increase a bit
A material or a collection of materials which is under study is called
Calorie and joule
Degree and ergs
State function
Degree and joule
1 2
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