1
JEE Main 2015 (Offline)
+4
-1 The following reaction is performed at 298 K
2NO(g) + O2 (g) $$\leftrightharpoons$$ 2NO2 (g)
The standard free energy of formation of NO(g) is 86.6 kJ/mol at 298 K. What is the standard free energy of formation of NO2(g) at 298 K? (KP = 1.6 × 1012)
A
86600 + R(298) ln(1.6 $$\times$$ 1012)
B
86600 - $$ln (1.6 \times 10^{12}) \over R (298)$$
C
0.5[2×86,600 – R(298) ln(1.6×1012)]
D
R(298) ln(1.6×1012) – 86600
2
JEE Main 2014 (Offline)
+4
-1
For the reaction SO2 (g) + $${1 \over 2} O_2(g) \leftrightharpoons$$ SO3(g).
if KP = KC(RT)x where the symbols have usual meaning then the value of x is: (assuming ideality)
A
-1
B
-1/2
C
1/2
D
1
3
JEE Main 2013 (Offline)
+4
-1
How many litres of water must be added to 1 litre of an aqueous solution of HCl with a pH of 1 to create an aqueous solution with pH of 2?
A
0.1 L
B
0.9 L
C
2.0 L
D
9.0 L
4
AIEEE 2012
+4
-1
The pH of a 0.1 molar solution of the acid HQ is 3. The value of the ionization constant, Ka of this acid is :
A
3 $$\times$$ 10–1
B
1 $$\times$$ 10–3
C
1 $$\times$$ 10–5
D
1 $$\times$$ 10–7
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