Mashaal Masha
Mashaal Masha
 Oct 18, 2022
0
Choose the correct options for the following questions.
The study of heat changes accompanying a chemical reaction is known as:
Difficulty: Easy
A:
Thermochemistry
B:
Biochemistry
C:
Physical chemistry
D:
Analytical chemistry
If an endothermic reaction is allowed to take place very rapidly in air, the temperature of the surrounding air:
Difficulty: Easy
A:
Remains constant
B:
Decreases
C:
Increases
D:
Fluctuates rapidly
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In endothermic reactions, the heat contents of the:
Difficulty: Easy
A:
Products equal to the reactants
B:
Reactants more than that of products
C:
Products more than that of reactants
D:
Both (b) and (c)
The majority of reactions which give stable products are:
Difficulty: Easy
A:
Exothermic
B:
Isothermal
C:
Endothermic
D:
Both (a) and (c)
It is noticed that energy in the form of heat is either evolved or absorbed as a result of a:
Difficulty: Easy
A:
Physical change
B:
Chemical change
C:
Biological change
D:
All of above
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In a chemical change, the energy in the form of heat will either be evolved or absorbed and this is called:
Difficulty: Easy
A:
Endothermic reaction
B:
Heat of products
C:
Exothermic reaction
D:
Heat of reaction
The energy units in which heat changes usually expressed in SI-system are:
Difficulty: Easy
A:
Joule
B:
Calorie
C:
Kilo Joule
D:
Both (a) and (c)
The subject matter of first law of thermochemistry is based on:
Difficulty: Easy
A:
First law of Thermochemistry
B:
First law of Thermodynamics
C:
Second law of Thermochemistry
D:
Second law of thermodynamics
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A process which takes place on its own without any outside assistance and moves from a non-equilibrium state towards an equilibrium is termed as:
Difficulty: Easy
A:
Spontaneous process
B:
Natural process
C:
Non-spontaneous process
D:
Both (a) and (b)
Which one of the following is not related to spontaneous process
Difficulty: Easy
A:
Unidirectional
B:
Real
C:
Irreversible
D:
Artificial

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