Time Left - 25:00 mins
Class XI Chemistry Thermodynamics Quiz 5
Attempt now to get your rank among 493 students!
Question 1
An ideal gas undergoes isothermal expansion at constant pressure. During the process:
Question 2
For a process to occur under adiabatic conditions the essential conditions is/are
Question 3
Based on the following thermochemical equations–
H2O (g) + C(s) →CO (g) + H2 (g);
ΔH = 131 kJ
CO (g) + 1/2 O2 (g) → CO2 (g);
ΔH = – 282 kJ
H2 (g) + 1/2 O2 (g) → H2O(g);
ΔH = – 242 kJ
C(s) + O2 (g) → CO2 (g);
ΔH = XkJ
The value of X will be–
H2O (g) + C(s) →CO (g) + H2 (g);
ΔH = 131 kJ
CO (g) + 1/2 O2 (g) → CO2 (g);
ΔH = – 282 kJ
H2 (g) + 1/2 O2 (g) → H2O(g);
ΔH = – 242 kJ
C(s) + O2 (g) → CO2 (g);
ΔH = XkJ
The value of X will be–
Question 4
From the following data at 25°C
which of the following statements are correct:
Statement (a) ∆H° for the reaction H2O(g) → 2H(g) + O(g) its 925.5 kJ/mol
Statement (b) ∆H° for the reaction OH(g) → H(g) + O(g) is 502kJ/mol
Statement (c) Enthalpy of formation of H(g) is – 218 kJ/mol
Statement (d) Enthalpy of formation of OH(g) is 42kJ/mol
Question 5
Calculate the resonance energy of N2O from the following data: ΔHf of N2O = 82 kJ mol–1. Bond energies of N ≡ N, N =N, O ≡ O and N ≡ O bonds are 946, 418, 498 and 607 kJ mol–1 respectively.
Question 6
The enthalpy of fusion of water is 1.435 kcal/mol. The molar entropy change for the melting of ice at 0°C is
Question 7
Calculate the change in entropy for the dissociation of HCl(aq) to H+ and Cl-
[Given that SCl = 56.6 J/molK and SHCl(aq)= 186.9 J/molK
[Given that SCl = 56.6 J/molK and SHCl(aq)= 186.9 J/molK
Question 8
1 mole of CO2 gas at 300K is expanded under adiabatic conditions such that its volume becomes 27 times. What is the work done? (
=4/3, Cv=6)
=4/3, Cv=6) - 493 attempts
- 3 upvotes
- 15 comments
Tags :
Nov 4JEE & BITSAT
