1
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Change Language
A gas is allowed to expand in a well insulated container against a constant external pressure of 2.5 atm from an initial volume of 2.50 L to a final volume of 4.50 L. The change in internal energy $$\Delta $$U of the gas in joules will be
A
$$-$$ 500 J
B
$$-$$ 505 J
C
+ 505 J
D
1136.25 J
2
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Change Language
The equilibrium constants of the following are

N2 + 3H2 $$\rightleftharpoons$$ 2NH3;     K1

N2 + O2 $$\rightleftharpoons$$ 2NO;     K2

H2 + $${1 \over 2}$$O2 $$\rightleftharpoons$$ H2O;     K3

The equilibrium constant (K) of the reaction :

2NH3 + $${5 \over 2}$$ O2 $$\rightleftharpoons$$ 2NO + 3H2O will be
A
K2K33/K1
B
K2K3/K1
C
K23K3/K1
D
K1K33/K2
3
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Change Language
Concentration of the Ag+ ions in a saturated solution of Ag2C2O4 is 2.2 $$ \times $$ 10$$-$$4 mol L$$-$$1. Solubility product of Ag2C2O4 is
A
2.66 $$ \times $$ 10$$-$$12
B
4.5 $$ \times $$ 10$$-$$11
C
5.3 $$ \times $$ 10$$-$$12
D
2.42 $$ \times $$ 10$$-$$8
4
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Change Language
A 20 litre container at 400 K contains CO2(g) at pressure 0.4 atm and an excess of SrO (neglect the volume of solid SrO). The volume of the container is now decreased by moving the movable piston fitted in the container. The maximum volume of the container, when pressure of CO2 attains its maximum value, will be

(Given that : SrCO3(s) $$\rightleftharpoons$$ SrO(s) + CO2(g), Kp = 1.6 atm)
A
10 litre
B
4 litre
C
2 litre
D
5 litre
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