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

In endothermic reactions, the heat contents of the:

Question # 2

Neutralization of a strong acid with a strong base is

Question # 3

For a given process, the heat changes at constant volume ( qv)are related to other as:

Question # 4

Burning of coal and hydrocarbon in air are examples of

Question # 5

Calorie is equivalent to

Question # 6

The majority of reactions which give stable products are:

Question # 7

Which of the following statements is contrary to the first law of themodynamics

Question # 8

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

Question # 9

When a piece of zinc is added to the copper sulphate solution, _______ colour of solution disappear

Question # 10

Which of the following statements is contrary to the first law of thermodynamics?

Question # 11

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

Question # 12

Some Non-spontaneous process can be made to take place by supplying energy to the system from :

Question # 13

In a chemical change, the energy in the form of heat will either be evolved or absorbed and this is called

Question # 14

Which one of the following is not related to spontaneous process

Question # 15

In endothermic reactions, the heat contents of the surrounding air

Question # 16

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

Question # 17

In endothermic reactions, the heat content of the:

Question # 18

Neutralization of a strong acid with a strong abase is:

Question # 19

When no work is done by the system

Question # 20

Enthalpy of neutralization of all the strong acids and strong bases has the same value because:

Question # 21

A state function is a

Question # 22

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

Question # 23

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 # 24

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

Question # 25

Burning of coal and hydrocarbon in air are examples of :

Question # 26

A reaction will also be called a spontaneous if

Question # 27

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 # 28

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 # 29

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

Question # 30

The majority of reactions which give stable products are

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ECAT Chemistry Chapter 7 Important MCQ's

Sr.# Question Answer
1 By state, we mean the
A. Reaction of system
B. Scope of a system
C. Condition of a system
D. None of above
2 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
3 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.
4 If an endothermic reaction is allowed to take place very rapidly in air, the temperature of the surrounding air :
A. Remains constant.
B. Decreases.
C. Increases.
D. Fluctuates rapidly.
5 The energy units in which heat changes usually expressed in Sl-system are:
A. Joule.
B. Calorie.
C. Kilo Joule.
D. Both (a) and (c)
6 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
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 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.
9 A reaction will also be called a spontaneous if :
A. It does no need energy to start with.
B. It needs energy to carry the whole process.
C. It needs energy at the end of reaction.
D. It needs energy to stat with.
10 Which of the following statements is contrary to the first law of thermodynamics?
A. Energy can neither be created no destroyed.
B. One form of energy can be transferred into an equivalent amount of the kinds of energy.
C. In a adiabatic process, the work done is independent of its path.
D. Continuous production of mechanical work without supplying an equivalent amount of heat is possible.

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