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NUST Entrance Test
Chemistry
Thermochemistry

Set 1

Mashaal Masha

Oct 18, 2022

0

Table of Contents

$The study of heat changes accompanying a chemical reaction is known as:$
$If an endothermic reaction is allowed to take place very rapidly in air, the temperature of the surrounding air:$
$In endothermic reactions, the heat contents of the:$
$The majority of reactions which give stable products are:$
$It is noticed that energy in the form of heat is either evolved or absorbed as a result of a:$
$In a chemical change, the energy in the form of heat will either be evolved or absorbed and this is called:$
$The energy units in which heat changes usually expressed in SI-system are:$
$The subject matter of first law of thermochemistry is based on:$
$A process which takes place on its own without any outside assistance and moves from a non-equilibrium state towards an equilibrium is termed as:$
$Which one of the following is not related to spontaneous process$

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Choose the correct options for the following questions.

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

Difficulty: Easy

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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

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A:

Remains constant

B:

Decreases

C:

Increases

D:

Fluctuates rapidly