The graph which will be representing all the equilibrium concentrations for the reaction N2O4(g) 2NO2 (g) will be : (the concentrations of N2O4 (g) and of NO (g) for which the following reaction will be at equilibrium will lie:

(1)       

(2)        

(3)         

(4)      

Subtopic:  Introduction To Equilibrium |
 64%
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For the chemical equilibrium, CaCO3(s) CaO(s) + CO2 (g) ΔHf° can be determined from which one of the following plots ?

(1)  

(2) 

(3) 

(4) 

Subtopic:  Le Chatelier's principle |
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At a certain temperature the following equilibrium is established, CO(g) + N02(g) CO2(g)+ NO(g)One mole of each of the four gas is mixed in one litre container and the reaction is allowed to reach equilibrium state. When excess of baryta water (Ba(OH)2) is added to the equilibrium mixture, the weight of white ppt (BaCO3) obtained is 236.4 gm. The equilibrium constant Kc of the reaction is (Ba = 137)

(1) 1.2

(2) 2.25

(3) 2.1

(4) 3.6

Subtopic:  Kp, Kc & Factors Affecting them |
 67%
From NCERT
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At temperature T, the compound AB2 (g) dissociates according to the reaction, 2AB2 (g) 2 AB(g) + B2(g). With a degree of dissociation x, which is small compared with unity. Deduce the expression for x in terms of the equilibrium constant, Kp and the total pressure, P.

(1) x = 2KpP1/3

(2) x = KpP1/3

(3) x = Kp2P1/3

(4) x = 6Kp3P1/3

Subtopic:  Kp, Kc & Factors Affecting them |
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NEET 2023 - Target Batch - Aryan Raj Singh
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Equilibrium constant for the given reaction is kc = 1020 at temperature 300 K,A(s) + 2B (aq.) 2C (s) + D (aq.)K = 1020 The equilibrium conc. of B starting with mixture of 1 mole of A and 1/3 mole/litre of B at 300 K is

(1) ~4×1011

(2) ~2×1010

(3) ~2×1011

(4) ~1010

Subtopic:  Kp, Kc & Factors Affecting them |
From NCERT
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10L box contain O3 and O2 at equilibrium at 2000 K. The ΔG° = –534.52 kJ at 8 atm equilibrium pressure.The following equilibrium is present in the container. 2O3(g) 3O2(g). The partial pressure of O3 will be (ln 10 = 2.3, R = 8.3 Jmole–1K–1):

(1) 8 ×104

(2) 22.62 × 10-7

(3) 9.71 × 10-6

(4) 9.71 × 10-2

Subtopic:  Kp, Kc & Factors Affecting them |
 64%
From NCERT
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Solid ammonium carbamate dissociates to give ammonia and carbon dioxide as follows:

NH2COONH4(s) 2 NH3(g) + CO2(g) At equilibrium, ammonia is added such that partial pressures of NH3 now equals the original total pressure. Calculate the ratio of the total pressures now to the original total pressure.

(1) 3127

(2) 6040

(3) 319

(4) 6227

Subtopic:  Kp, Kc & Factors Affecting them |
 54%
From NCERT
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The reactions, PCl5 (g) PCl3(g) + Cl2(g) and COCl2(g) CO(g) + Cl2(g) are simultaneously in equilibrium in an equilibrium box at constant volume. A few moles of CO(g) are later introduced into the vessel. After some time, the new equilibrium concentration of

(1) PCl5 will remain unchanged

(2) Cl2 will be greater

(3) PCl5 will become less

(4) PCl5 will become greater

Subtopic:  Le Chatelier's principle |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

In the Haber process for the industrial manufacture of ammonia involving the reaction, N2 + 3H2 2NH3 at 200 atm pressure in the presence of a catalyst, temperature of about 500°C. This is considered as optimum temperature for the process because

(1) yield is maximum at this temperature

(2) catalyst is active only at this temperature

(3) energy needed for the reaction is easily obtained at this temperature

(4) rate of the catalytic reaction is fast enough while the yield is also appreciable for this exothermic reaction at this temperature.

Subtopic:  Le Chatelier's principle |
 61%
From NCERT
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What is the minimum mass of CaCO3 (s), below which it decomposes completely, required to establish equilibrium in a 6.50 litre container for the reaction : [ KC = 0.05 mole/litre]

CaCO3 (s) CaO(s) + CO2(g)

(1) 32.5g

(2) 24.6 g

(3) 40.9g

(4) 8.0 gm

Subtopic:  Kp, Kc & Factors Affecting them |
 62%
From NCERT
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