1
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
For the reaction, 2Cl(g) $$ \to $$ Cl2(g), the correct option is :
A
$${\Delta _r}H > 0$$ and $${\Delta _r}S < 0$$
B
$${\Delta _r}H < 0$$ and $${\Delta _r}S > 0$$
C
$${\Delta _r}H < 0$$ and $${\Delta _r}S < 0$$
D
$${\Delta _r}H > 0$$ and $${\Delta _r}S > 0$$
2
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
The correct option for free expansion of an ideal gas under adiabatic condition is :
A
q = 0, $$\Delta $$ T < 0 and w > 0
B
q < 0, $$\Delta $$ T = 0 and w = 0
C
q > 0, $$\Delta $$ T > 0 and w > 0
D
q = 0, $$\Delta $$ T = 0 and w = 0
3
NEET 2019
MCQ (Single Correct Answer)
+4
-1
In which case change in entropy is negative?
A
Sublimation of solid to gas
B
2H(g) $$ \to $$ H2(g)
C
Evaporation of water
D
Expansion of a gas at temperature
4
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Under isothermal condition, a gas at 300 K expands from 0.1 L to 0.25 L against a constant external pressure of 2 bar. The work done by the gas is [Given that 1 L bar = 100 J]
A
25 J
B
30 J
C
-30 J
D
5 kJ
NEET Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12