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

The compressibility factor for a van der Waal gas at high pressure is

A
$$1+\frac{\mathrm{RT}}{\mathrm{Pb}}$$
B
$$1+\frac{\mathrm{Pb}}{\mathrm{RT}}$$
C
$$1-\frac{\mathrm{Pb}}{\mathrm{RT}}$$
D
1
2
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
$$ \left(\Delta U_{\text {system }}\right)_{S, v}<0 $$
3
WB JEE 2024
MCQ (Single Correct Answer)
+1
-0.25
Change Language

Identify the incorrect statement among the following :

A
Viscosity of liquid always decreases with increase in temperature.
B
Surface tension of liquid always decreases with increase in temperature.
C
Viscosity of liquid always increases in presence of impurity.
D
Surface tension of liquid always increases in presence of impurity.
4
WB JEE 2024
MCQ (Single Correct Answer)
+1
-0.25
Change Language

Which of the following statements is true about equilibrium constant and rate constant of a single step chemical reaction?

A
Equilibrium constant may increase or decrease but rate constant always increases with temperature.
B
Both equilibrium constant and rate constant increase with temperature.
C
Rate constant may increase or decrease but equilibrium constant always increases with temperature.
D
Both equilibrium constant and rate constant decrease with temperature.
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