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Class XI Chemistry Thermodynamics 7
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Question 1
For a reaction, 
The correct statement for the reaction is:
The correct statement for the reaction is: Question 2
For a process to occur under adiabatic conditions the essential conditions is/are
Question 3
The standard enthalpy of formation of 
is -46.0 kJ/mol. If the enthalpy of formation of 
from its atoms is -436 kJ/mol and that of 
is -712 kJ/mol, the average bond enthalpy of N – H bond in 
is :
is -46.0 kJ/mol. If the enthalpy of formation of from its atoms is -436 kJ/mol and that of is -712 kJ/mol, the average bond enthalpy of N – H bond in is : Question 4
The standard enthalpy of formation (ΔfH °) at 298 K for methane, CH4(g), is — 74.8 kJ mol–1. The additional information required to determine the average energy for C —H bond formation would be
Question 5
Which of the following about entropy is correct?
Question 6
A heat engine absorbs heat q1 from a source at temperature T1 and heat q2 from a source at temperature T2. Work done is found to be (q1+ q2). This is in accordance with:
Question 7
If 100 mole of 
decompose at 1 bar and 300 K, the work done (kJ) by one mole of 
as it expands against 1 bar pressure is:
decompose at 1 bar and 300 K, the work done (kJ) by one mole of as it expands against 1 bar pressure is: Question 8
A reaction is non-spontaneous at the freezing point of water but is spontaneous at the boiling point of water then ΔH and ΔS should be
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