Trying to find the right answer to this..

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

Thermodynamics

Short Answer Type

101.

Although dissolution of ammonium chloride in water is endothermic yet it dissolves. Why?

122 Views

102.

What is the standard state of the substance?

141 Views

103.

What are exothermic and endothermic compounds?

120 Views

104.
What is the physical significance of entropy?

Entropy is a measure of the degree randomness or disorder in the system. The gaseous state has a maximum disorder, so its entropy will be the highest.

Disorder: Solid < Liquid < Gas.
Entropy: Solid < Liquid < Gas.

96 Views

105.

What is the sign of ∆S for a spontaneous process in an isolated system?

99 Views

106.

Predic the sign of $increment straight S$ for:
$space left parenthesis straight i right parenthesis space straight O subscript 2 left parenthesis straight g right parenthesis space space space rightwards arrow space space space 2 straight O left parenthesis straight g right parenthesis space left parenthesis ii right parenthesis space straight N subscript 2 left parenthesis straight g comma 10 space atm right parenthesis space rightwards arrow space straight N subscript 2 left parenthesis straight g comma space 1 space atm right parenthesis.$

105 Views

107.

Give the relation between entropy change and heat exchanged between the sytem and surrounding for a reversible reaction taking place at temperature T.

89 Views