1
JEE Main 2016 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
For the reaction,
A(g) + B(g) $$ \to $$ C(g) + D(g), $$\Delta $$Ho and $$\Delta $$So are, respectively, − 29.8 kJ mol−1 and −0.100 kJ K−1 mol−1 at 298 K. The equilibrium constant for the reaction at 298 K is :
A
1.0 $$ \times $$ 10$$-$$10
B
1.0 $$ \times $$ 1010
C
10
D
1
2
JEE Main 2016 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
A reaction at 1 bar is non-spontaneous at low temperature but becomes spontaneous at high temperature. Identify the correct statement about the reaction among the following :
A
Both $$\Delta $$H and $$\Delta $$S are negative.
B
Both $$\Delta $$H and $$\Delta $$S are positive.
C
$$\Delta $$H is positive while $$\Delta $$S is negative.
D
$$\Delta $$H is negative while $$\Delta $$S is positive.
3
JEE Main 2016 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The plot shows the variation of −$$ln$$ Kp versus temperature for the two reactions.

M(s) + $${1 \over 2}$$ O2(g) $$ \to $$ MO(s) and

C(s) + $${1 \over 2}$$ O2(g) $$ \to $$ CO(s)

JEE Main 2016 (Online) 9th April Morning Slot Chemistry - Thermodynamics Question 132 English
Identify the correct statement :
A
At T > 1200 K, carbon will reduce MO(s) to M(s).
B
At T < 1200 K, the reaction

MO(s) + C(s) $$ \to $$ M(s) + CO(g) is spontaneous.
C
At T < 1200 K, oxidation of carbon is unfavourable
D
Oxidation of carbon is favourable at all temperatures.
4
JEE Main 2016 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
The heats of combustion of carbon and carbon monoxide are –393.5 and –283.5 kJ mol–1, respectively. The heat of formation (in kJ) of carbon monoxide per mole is :
A
676.5
B
-676.5
C
–110
D
110.5
JEE Main Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
CBSE
Class 12