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NEET UG CHEMISTRY MCQ: Equilibrium

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Analyzing +4 | -1
An amount of 3 moles of N2\mathrm{N}_2 and some H2\mathrm{H}_2 is introduced into an evacuated vessel. The reaction starts at t=0t=0 and equilibrium is attained at t=t1t=t_1. The amount of ammonia at t=2t1t=2 t_1 is found to be 34 g.34 \mathrm{~g}. It is observed that w(N2)w(H2)=143\frac{w\left(\mathrm{N}_2\right)}{w\left(\mathrm{H}_2\right)}=\frac{14}{3} at t=t13t=\frac{t_1}{3} and t=t12.t=\frac{t_1}{2}. The only correct statement is
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Correct option: B
w(N2)+w(H2)+w(NH3)=102w\left(\mathrm{N}_2\right)+w\left(\mathrm{H}_2\right)+w\left(\mathrm{NH}_3\right)=102 g at t=2t1t=2 t_1
Option B (w(N2)+w(H2)+w(NH3)=102w(N_2) + w(H_2) + w(NH_3) = 102 g at t=2t1t=2t_1) is correct because at equilibrium, the total mass remains constant, and 34g of ammonia is formed from N2 and H2.

More Questions from Equilibrium

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Given below are two statements: One is labelled as Assertion A and the other labelled as Reason R.
Assertion A: During the boiling of water having temporary hardness, Mg(HCO3)2Mg{(HC{O_3})_2} is converted to MgCO3MgC{O_3}.
Reason R The solubility product of Mg(OH)2Mg{(OH)_2} is greater than that of MgCO3MgC{O_3}.
In the light of the above statements, choose the most appropriate answer from the options given below At a certain temperature, KPK_{\mathrm{P}} for the dissociation of solid CaCO3\mathrm{CaCO}_3 is 4.5×10−24.5 \times 10^{-2} atm and for the reaction C(s)+CO2(g)⇌2CO(g),\mathrm{C}(\mathrm{s})+\mathrm{CO}_2(\mathrm{g}) \rightleftharpoons 2 \mathrm{CO}(\mathrm{g}), the KPK_{\mathrm{P}} value is 2.0 atm.2.0 \mathrm{~atm}. The pressure of carbon monoxide at this temperature, when solid carbon CaO\mathrm{CaO} and CaCO3\mathrm{CaCO}_3 are mixed together and allowed to attain equilibrium is Phenolphthalein shows … in acid medium. At the state of dynamic equilibrium, for solute ++ solvent ⇋\leftrightharpoons solution. For PCl5⇋PCl3+Cl2\mathrm{PC}{\mathrm{l}_5}\leftrightharpoons\mathrm{PC}{\mathrm{l}_3} + \mathrm{C}{\mathrm{l}_2}, initial concentration of each reactant and product is 1 M. If Keq=0.41{K_{\mathrm{eq}}} = 0.41 then Select the pKa\mathrm{p}{K_a} value of the strongest acid from the following
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