ECAT Pre Engineering Chemistry Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 7 Thermo Chemistry

Try The MCQ's Test For ECAT Chemistry Chapter 7 Thermo Chemistry

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ECAT Chemistry Chapter 7 Thermo Chemistry

00:00
Question # 1

A reaction will also be called a spontaneous if :

Question # 2

If an endothermic reaction is allowed to take place very rapidly in air, the temperature of the surrounding air

Question # 3

In endothermic reactions, the heat contents of the:

Question # 4

The subject matter of first law of thermochemistry is based on

Question # 5

It is noticed that energy in the from of heat is either evolved or absorbed as a result of a:

Question # 6

It is noticed that energy in the form of heat is either evolved or absorbed as a result of a

Question # 7

If an endothermic reaction is allowed to take place very rapidly in the air, the temperature of the surrounding air

Question # 8

For the reaction : NaOH + HCl---------------> NaCl + H2O the change in enthalpy is called:

Question # 9

Burning of coal and hydrocarbon in air are examples of :

Question # 10

Calorie is equivalent to :

Question # 11

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 known as:

Question # 12

The real or imaginary surface separating the system from the surrounding is called

Question # 13

A process which takes place on its own without any outside assistance and moves from a non-equilibrium stat towards an equilibrium stat is termed as:

Question # 14

If an endothermic reaction is allowed to take place very rapidly in air, the temperature of the surrounding air :

Question # 15

Which one of the following is not related to spontaneous process.

Question # 16

The subject matter of first law of thermochemistry is based on:

Question # 17

A reaction will also be called a spontaneous if

Question # 18

The change in heat energy of a chemical reaction at constant temperature and pressure is called

Question # 19

By state, we mean the

Question # 20

One mole of oxygen confined in a cylinder fitted with a piston is an example of

Question # 21

By comparing both initial and final states of the system, we can describe the change taking place in the

Question # 22

When a piece of zinc is added to the copper sulfate solution,____________ color of solution disappear.

Question # 23

When a system absorbs energy, the sign of delta E is

Question # 24

If an endothermic reaction is allowed to take place very rapidly in the air, the temperature of the surrounding air:

Question # 25

The reaction of Zinc with copper sulphate solution is an example of

Question # 26

The energy units in which heat changes usually expressed in Sl-system are:

Question # 27

Reaction between Zn and CuSO4can be called a system under

Question # 28

The change in heat energy of a chemical reaction at constant temperature and pressure is called :

Question # 29

A process which takes place on its own without any outside assistance and moves from a non-equilibrium state towards an equilibrium state is termed as

Question # 30

The study of heat changes accompanying a chemical reaction is known as :

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ECAT Chemistry Chapter 7 Important MCQ's

Sr.# Question Answer
1 Some non-spontaneous processes can be made to take place by supplying energy to the system from
A. Internal source
B. Any source
C. External source
D. All of above
2 The study of heat changes accompanying a chemical reaction is known as :
A. Thermochemistry.
B. Biochemistry.
C. Physical chemistry.
D. Analytical chemistry.
3 The change in heat energy of a chemical reaction at constant temperature and pressure is called
A. entahlpy change
B. heat of sublimation
C. bond energy
D. internal energy change
4 For the reaction : NaOH + HCl---------------> NaCl + H2O the change in enthalpy is called:
A. Heat of reaction.
B. Heat of formation.
C. Heat of neutralization.
D. Heat of combustion.
5 A process which takes place on its own without any outside assistance and moves from a non-equilibrium state towards an equilibrium state is termed as
A. Spontaneous process
B. Natural process
C. Non-spontaneous process
D. Both a and b
6 The reaction of Zinc with copper sulphate solution is an example of
A. Oxidation reduction reaction
B. Spontaneous reaction
C. Spontaneous redox reaction
D. Non-spontaneous reaction
7 For a given process, the heat changes at constant volume ( qv)are related to other as:
A.

qp= qv

B.

qp<qv

C.

qp>qv

D.

qp=qv/2
8 The energy units in which heat changes usually expressed in SI-system are
A. Joule
B. Calorie
C. Kilo Joule
D. Both a and c
9 The reaction of zinc with the copper sulfate solution is an example of.
A. Oxidation reduction reaction.
B. Spontaneous reaction.
C. Spontaneous redox reaction.
D. Non-spontaneous reaction.
10 It is noticed that energy in the form of heat is either evolved or absorbed as a result of a
A. Physical change
B. Chemical change
C. Biological change
D. All of above

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