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Class XI Chemistry Revision Quiz Thermodynamics 1
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Question 1
One gram sample of ammonium nitrate is decomposed in a bomb calorimeter. The temperature of calorimeter increases by 6.12 K. The heat capacity of the system is 1.23 kJ/g/deg. What is the molar heat of decomposition of NH4 NO3
Question 2
If C + O2 
CO2 + 94.2 kcal
Then the possible heat of formation of methane will be
CO2 + 94.2 kcal Then the possible heat of formation of methane will be
Question 3
The standard enthalpies of formation of A (NH3), B (CO2), C (HI) and D (SO2) are - 46.19, -393.4, +24.94 and -296.9 kJ mol-1 respectively. The increasing order of their stability is
Question 4
Given that bond energies of H – H and Cl – Cl are 430 kJ mol–1 and 240 kJ mol–1 respectively and 
for HCl is –90 kJ mol–1. Bond enthalpy of HCl is
for HCl is –90 kJ mol–1. Bond enthalpy of HCl isQuestion 5
Standard entropy change for the above reaction is
Question 6
Heat of combustion 
for C(s), H2(g)and CH4 (g) are -94, -68 and -213kcal/mol. Then 
for C(s) + 2H2(g)
CH4(g) is :
for C(s), H2(g)and CH4 (g) are -94, -68 and -213kcal/mol. Then for C(s) + 2H2(g) CH4(g) is : Question 7
Consider a system with two parts each with entropy S1 and S2 existing in equilibrium. Choose the right formula that specify the total entropy of the system:
Question 8
Unit of entropy is :
Question 9
Considering entropy (S) as a thermodynamic parameter, the criterion for the spontaneity of any process is.
Question 10
A system absorb 600J of heat and work equivalent to 300J on its surrounding. The change in internal energy is
Question 11
The values of ΔH and ΔS for the reaction, C(graphite) +CO2(g)→2CO(g) are 170 kJ and 170 JK-1, respectively. This reaction will be spontaneous at
Question 12
Free energy for a reaction having ∆H = 31400 cal, ∆S = 32 cal-1 at 1000 °C is?
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Dec 23NEET & AIIMS
