EASY
MHT-CET
IMPORTANT
Earn 100

For which among the following reactions, change in entropy is less than zero?
 

50% studentsanswered this correctly

Important Questions on Chemical Thermodynamics and Energetics

EASY
MHT-CET
IMPORTANT
MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 12 - Chemical Thermodynamics and Energetics>Competitive Thinking>Q 69
The unit of entropy is:
EASY
MHT-CET
IMPORTANT
MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 12 - Chemical Thermodynamics and Energetics>Competitive Thinking>Q 70
What is the entropy change (in JK–1 mol–1), when one mole of ice is converted into water at 0 °C? (The enthalpy change for the conversion of ice to liquid water is 6.0 kJ mol–1 at 0 °C).
 
EASY
MHT-CET
IMPORTANT
MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 12 - Chemical Thermodynamics and Energetics>Competitive Thinking>Q 71
One mole of NaCl s, on melting absorbed 30.5 kJ of heat and its entropy is increased by 28.8 JK-1. The melting point of NaCl is :
 
EASY
MHT-CET
IMPORTANT
MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 12 - Chemical Thermodynamics and Energetics>Competitive Thinking>Q 72
One mole of water at 100°C is converted into steam at 100°C at a constant pressure of 1 atm. The change in entropy is_______. (heat of vaporisation of water at 100 °C=540 cal/g).    
 
EASY
MHT-CET
IMPORTANT
MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 12 - Chemical Thermodynamics and Energetics>Competitive Thinking>Q 73

If the enthalpy of vaporisation for water is 186.5 kJ mol-1, the entropy of its vaporisation will be:

EASY
MHT-CET
IMPORTANT
MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 12 - Chemical Thermodynamics and Energetics>Competitive Thinking>Q 74
For a sample of perfect gas, its pressure is changed isothermally from Pi to Pf, the entropy change is given by:    
EASY
MHT-CET
IMPORTANT
MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 12 - Chemical Thermodynamics and Energetics>Competitive Thinking>Q 76
Considering entropy (S) as a thermodynamic parameter, the criterion for the spontaneity of any process is:
 
EASY
MHT-CET
IMPORTANT
MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 12 - Chemical Thermodynamics and Energetics>Competitive Thinking>Q 78
Adsorption of gases on a solid surface is generally exothermic because