JEE MainChemistryThermodynamicsMCQ+4 / −1
The process with negative entropy change is :
- ADissociation of (s) to (s) and (g)
- BDissolution of iodine in water
- CSynthesis of ammonia from and
- DSublimation of dry ice
More from Thermodynamics
- For the chemical reaction X Y, the standard reaction Gibbs energy depends on temperature T (in K) as rGo (in kJ mol–1) = 120 T. The major component of the reaction mixture at T is :2019 · MCQ
- Two blocks of the same metal having same mass and at temperature T1 and T2, respectively, are brought in contact with each other and allowed to attain thermal equilibrium at constant pressure. The change in entropy, S, for this…2019 · MCQ
- The standard reaction Gibbs energy for a chemical reaction at an absolute temperature T is given by rGo = A – BT Where A and B are non-zero constants. Which of the following is TRUE about this reaction?2019 · MCQ
- The reaction, MgO(s) + C(s) Mg(s) + CO(g), for which rHo + 491.1 kJ mol–1 and rSo = 198.0 JK–1 mol–1, is not feasible at 298 K. Temperature above which reaciton will be feasible is :2019 · MCQ
- For the equilibrium, 2 + , the value of Go at 298 K is approximately :2019 · MCQ
- An ideal gas is allowed to expand form 1 L to 10 L against a constant external pressure of I bar. The work done in kJ is :2019 · MCQ
- Enthalpy of sublimation of iodine is 24 cal g–1 at 200 oC. If specific heat of (s) and l2 (vap) are 0.055 and 0.031 cal g–1K –1 respectively, then enthalpy of sublimation of iodine at 250 oC in cal g–1 is :2019 · MCQ
- For diatomic ideal gas in a closed system, which of the following plots does not correctly describe the relation between various thermodynamic quantities?2019 · MCQ