1
JEE Main 2019 (Online) 11th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Consider the reaction
N2(g) + 3H2(g) $$\rightleftharpoons$$ 2NH3(g)

The equilibrium constant of the above reaction is Kp. If pure ammonia is left to dissociate, the partial pressure of ammonia at equilibrium is given by (Assume that PNH3 << Ptotal at equilibrium)
A
$${{{3^{{3 \over 2}}}{K_P^{{1 \over 2}}}{P^2}} \over 4}$$
B
$${{K_P^{{1 \over 2}}{P^2}} \over 4}$$
C
$${{{3^{{3 \over 2}}}{K_P^{{1 \over 2}}}{P^2}} \over 16}$$
D
$${{K_P^{{1 \over 2}}{P^2}} \over 16}$$
2
JEE Main 2019 (Online) 10th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
5.1 g NH4SH is introduced in 3.0 L evacuated flask at 327ºC. 30% of the solid NH4SH decomposed to NH3 and H2S as gases . The Kp of the reaction at 327oC is (R = 0.082 L atm mol–1 K–1, Molar mass of S = 32 g mol–1 molar mass of N = 14 g mol–1)
A
0.242 $$ \times $$ 10$$-$$4 atm2
B
1 $$ \times $$ 10–4 atm2
C
4.9 $$ \times $$ 10$$-$$3 atm2
D
0.242 atm2
3
JEE Main 2019 (Online) 10th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The values of Kp/Kc for the following reactions at 300 K are, respectively : (At 300 K, RT = 24.62 dm3 atm mol–1)

N2(g) + O2(g)  $$\rightleftharpoons$$ 2 NO(g)

N2O4(g)  $$\rightleftharpoons$$   2 NO(g)

N2(g) + 3H2(g) $$\rightleftharpoons$$ 2 NH3(g)
A
24.62 dm3 atm mol–1, 606.0 dm6 atm2 mol–2 1.65 $$ \times $$ 10–3 dm–6 atm–2 mol2
B
1,4.1 $$ \times $$ 10–2 dm–3 atm–1 mol, 606 dm6 atm2 mol–2
C
1,24.62 dm3 atm mol–1 , 1.65 $$ \times $$ 10–3 dm–6 atm –2 mol2
D
1, 24.62 dm3 atm mol–1, 606.0 dm6 atm2 mol–2
4
JEE Main 2019 (Online) 9th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Consider the following reversible chemical reactions :

JEE Main 2019 (Online) 9th January Evening Slot Chemistry - Chemical Equilibrium Question 72 English

The relation between K1 and K2 is :
A
K1K2 = $${1 \over 3}$$
B
K2 = K13
C
K2 = K1$$-$$3
D
K1K2 = 3
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