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

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Question # 1

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

Question # 2

In endothermic reactions, the heat contents of the:

Question # 3

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

Question # 4

Calorie is equivalent to

Question # 5

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

Question # 6

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

Question # 7

Burning of coal and hydrocarbon in air are examples of

Question # 8

The net heat 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 # 9

When no work is done by the system

Question # 10

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

Question # 11

In endothermic reactions, the heat contents of the surrounding air

Question # 12

By state, we mean the

Question # 13

Work is a

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

Neutralization of a strong acid with a strong base is

Question # 22

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

Question # 23

Neutralization of a strong acid with a strong abase is:

Question # 24

The subject matter of first law of thermochemistry is based on

Question # 25

Which one of the following is not related to spontaneous process

Question # 26

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

Question # 27

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

Question # 28

The majority of reactions which give stable products are:

Question # 29

A reaction will also be called a spontaneous if :

Question # 30

A reaction will also be called a spontaneous if

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ECAT Chemistry Chapter 7 Important MCQ's

Sr.# Question Answer
1 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.
2 Neutralization of a strong acid with a strong abase is:
A. Natural acid base reaction.
B. Artificial acid base reaction.
C. Spontaneous acid base reaction.
D. Both (a) and (c).
3 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
4 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
5 If an endothermic reaction is allowed to take place very rapidly in the air, the temperature of the surrounding air:
A. Remains constant.
B. Increase.
C. Decreases.
D. Remain unchanged.
6 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
7 Which of the following statements is contrary to the first law of themodynamics
A. Energy can neither be created nor destroyed
B. One form of energy can be transferred into an equivalent amount of other kinds of energy
C. In an adiabatic process, the work done is independent of its path
D. Continuous production of mechanical work without supplying and equivalent amount of heat is possible
8 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
9 A state function is a
A. Microscopic property
B. Macroscopic
C. Unique property
D. Both a and c
10 Burning of coal and hydrocarbon in air are examples of :
A. Non-spontaneous reaction.
B. Spontaneous reaction.
C. Natural reaction
D. Both (a) and (C)

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