MHT CET 2023 14th May Evening Shift | Thermodynamics Question 47 | Chemistry

$$\mathrm{\mathop {{C_3}{H_{6(g)}}}\limits_{(150\,mL)} + \mathop {HC{l_{(g)}}}\limits_{(150\,mL)} \buildrel {} \over \longrightarrow \mathop {{C_3}{H_7}C{l_{(g)}}}\limits_{(150\,mL)}}$$

5.2 J

10.21 J

15.00 J

18.2 J

MHT CET 2023 14th May Morning Shift

MCQ (Single Correct Answer)

-0

If enthalpy change for following reaction at $$300 \mathrm{~K}$$ is $$+7 \mathrm{~kJ} \mathrm{~mol}^{-1}$$ find the entropy change of surrounding?

$$\mathrm{H}_2 \mathrm{O}_{(\mathrm{s})} \longrightarrow \mathrm{H}_2 \mathrm{O}_{(\ell)}$$

$$-42.8 \mathrm{~J} \mathrm{~K}^{-1}$$

$$-23.3 \mathrm{~J} \mathrm{~K}^{-1}$$

$$-30.7 \mathrm{~J} \mathrm{~K}^{-1}$$

$$-110.0 \mathrm{~J} \mathrm{~K}^{-1}$$

MHT CET 2023 14th May Morning Shift

MCQ (Single Correct Answer)

-0

Calculate $$\Delta \mathrm{H}$$ for following reaction, at $$25{ }^{\circ} \mathrm{C}$$.

$$\mathrm{NH}_2 \mathrm{CN}_{(\mathrm{g})}+\frac{3}{2} \mathrm{O}_{2(\mathrm{~g})} \longrightarrow \mathrm{N}_{2(\mathrm{~g})}+\mathrm{CO}_{2(\mathrm{~g})}+\mathrm{H}_2 \mathrm{O}_{(\mathrm{g})}$$

$$(\Delta \mathrm{U}=-740.5 \mathrm{~kJ}, \mathrm{R}=8.314 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1})$$

$$-708.4 \mathrm{~kJ} \mathrm{~mol}^{-1}$$

$$-789.4 \mathrm{~kJ} \mathrm{~mol}^{-1}$$

$$-741.7 \mathrm{~kJ} \mathrm{~mol}^{-1}$$

$$-863.9 \mathrm{~kJ} \mathrm{~mol}^{-1}$$

MHT CET 2023 14th May Morning Shift

MCQ (Single Correct Answer)

-0

Identify false statement regarding isothermal process from following.

System can exchange heat energy with the surrounding.

Enthalpy of system remains constant.

Temperature of systems remains constant

Internal energy of system remint constant

PREVIOUS NEXT

MHT CET Subjects