For adiabatic process,which is correct
For adiabatic process,which is correct
Options
(a) ΔT = 0 (b) ΔS = 0 (c) q = 0 (d) q(p) = 0
Correct Answer:
q = 0
Explanation:
No explanation available. Be the first […]
Thermodynamics
In an isobaric process,when temperature changes from T₁ to T₂, ΔS is equal to
In an isobaric process,when temperature changes from T₁ to T₂, ΔS is equal to
Options
(a) 2.303 Cp log (T₂/T₁) (b) 2.303 Cp ln(T₂/T₁) (c) Cp ln (T₁/T₂) (d) Cv ln (T₂/T₁)
Correct Answer: […]
For a spontaneous process the correct statement is
For a spontaneous process the correct statement is
Options
(a) entropy of the system always increases (b) free energy of the system always increases (c) total entropy change is always negative (d) total entropy […]
For the reaction one of the mole of zinc dust with one mole of sulphuric acid
For the reaction one of the mole of zinc dust with one mole of sulphuric acid in a bomb calorimeter, ΔU and w coorespond to
Options
(a) ΔU< 0,w = 0 (b) ΔU < […]
ΔH°f (298 K) of methanol is given by the chemical equation
ΔH°f (298 K) of methanol is given by the chemical equation
Options
(a) CH₄(g) + 1/2 O₂(g) → CH₃OH(g) (b) C + 1/2 O₂(g) + 2H₂(g) → CH₃OH(l) (c) C(diamond) + 1/2 O₂(g) + […]
How much energy is released when 6 moles of octane is burnt in air
How much energy is released when 6 moles of octane is burnt in air? Given ΔH°f for CO₂(g), H₂O(g) and C₈H₁₈respectively are -490, -240 and +160 kJ/mol
Options
(a) -6200 kJ (b) -37440 kJ […]
Which one of the following has ΔS⁰ greater then zero
Which one of the following has ΔS⁰ greater then zero
Options
(a) CaO(s)+ CO₂(g) ⇌ CaCO₃(s) (b) NaCl(aq) ⇌ NaCl(s) (c) NaNO₃(s) ⇌ Na⁺(aq) + NO₃⁻(aq) (d) N₂(g) + 3H₂(g) ⇌ 2NH₃(g)
Correct Answer: […]
One gram sample NH₄NO₃ is decomposed in a bomb calorimeter.
One gram sample NH₄NO₃ is decomposed in a bomb calorimeter.The temperature of the calorimeter increases by 6.12K.The heat capacity of the system is 1.23kJ/g/deg.What is the molar heat of decomposition for NH₄NO₃
Options
(a) […]
The heat of combustion of carbon to CO₂ is -393.5 kJ/mol. The heat released
The heat of combustion of carbon to CO₂ is -393.5 kJ/mol. The heat released upon formation of 35.2 g of CO₂ from carbon and oxygen gas is
Options
(a) 315 kJ (b) -630 kJ […]
Which of the following statements is correct for the spontaneous adsorption of a gas
Which of the following statements is correct for the spontaneous adsorption of a gas
Options
(a) ΔS is negative and therefore, ΔH should be highly positive (b) ΔS is negative and therefore ,ΔH […]