1
WB JEE 2024
MCQ (Single Correct Answer)
+1
-0.25
Change Language

For a spontaneous process, the incorrect statement is

A
$$ \left(\Delta \mathrm{G}_{\text {system }}\right)_{\mathrm{T}, \mathrm{P}}>0 $$
B
$$ \left(\Delta \mathrm{S}_{\text {system }}\right)+\left(\Delta \mathrm{S}_{\text {surroundings }}\right)>0 $$
C
$$ \left(\Delta \mathrm{G}_{\text {system }}\right)_{\mathrm{T}, \mathrm{P}}<0 $$
D
$$ \left(\Delta U_{\text {system }}\right)_{S, v}<0 $$
2
WB JEE 2021
MCQ (Single Correct Answer)
+1
-0.25
Change Language
For a spontaneous reaction at all temperatures which of the following is correct?
A
Both $$\Delta$$H and $$\Delta$$S are positive
B
$$\Delta$$H is positive and $$\Delta$$S is negative
C
$$\Delta$$H is negative and $$\Delta$$S is positive
D
Both $$\Delta$$H and $$\Delta$$S are negative
3
WB JEE 2020
MCQ (Single Correct Answer)
+1
-0.25
Change Language
An ideal gas expands adiabatically against vacuum. Which of the following is correct for the given process?
A
$$\Delta $$S = 0
B
$$\Delta $$T = $$ - $$ve
C
$$\Delta $$U = 0
D
$$\Delta $$P = 0
4
WB JEE 2019
MCQ (Single Correct Answer)
+1
-0.33
Change Language
For the equilibrium, H2O(l) $$\rightleftharpoons$$ H2O(v), which of the following is correct?
A
$$\Delta$$G = 0, $$\Delta$$H < 0, $$\Delta$$S < 0
B
$$\Delta$$G < 0, $$\Delta$$H > 0, $$\Delta$$S > 0
C
$$\Delta$$G > 0, $$\Delta$$H = 0, $$\Delta$$S > 0
D
$$\Delta$$G = 0, $$\Delta$$H > 0, $$\Delta$$S > 0
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