WB JEE 2021 | Thermodynamics Question 1 | Chemistry

WB JEE 2021

MCQ (Single Correct Answer)

-0.25

For a spontaneous reaction at all temperatures which of the following is correct?

Both $$\Delta$$H and $$\Delta$$S are positive

$$\Delta$$H is positive and $$\Delta$$S is negative

$$\Delta$$H is negative and $$\Delta$$S is positive

Both $$\Delta$$H and $$\Delta$$S are negative

WB JEE 2020

MCQ (Single Correct Answer)

-0.25

An ideal gas expands adiabatically against vacuum. Which of the following is correct for the given process?

$$\Delta $$S = 0

$$\Delta $$T = $$ - $$ve

$$\Delta $$U = 0

$$\Delta $$P = 0

WB JEE 2019

MCQ (Single Correct Answer)

-0.33

For the equilibrium, H₂O(l) $$\rightleftharpoons$$ H₂O(v), which of the following is correct?

$$\Delta$$G = 0, $$\Delta$$H < 0, $$\Delta$$S < 0

$$\Delta$$G < 0, $$\Delta$$H > 0, $$\Delta$$S > 0

$$\Delta$$G > 0, $$\Delta$$H = 0, $$\Delta$$S > 0

$$\Delta$$G = 0, $$\Delta$$H > 0, $$\Delta$$S > 0

WB JEE 2019

MCQ (Single Correct Answer)

-0.33

The quantity hv/K_B corresponds to

wavelength

velocity

temperature

angular momentum

WB JEE Subjects