AP EAPCET 2021 - 20th August Morning Shift | Thermodynamics Question 9 | Chemistry

For the reaction, $$\mathrm{H}_2 \mathrm{O}(l) \longrightarrow \mathrm{H}_2 \mathrm{O}(\mathrm{g})$$ at $$T=100^{\circ} \mathrm{C}$$ and $$p=1 \mathrm{~atm}$$, choose the correct option.

$$\Delta S_{\text {system }} > 0$$ and $$\Delta S_{\text {surrounding }} > 0$$

$$\Delta S_{\text {system }} > 0$$ and $$\Delta S_{\text {surrounding }} < 0$$

$$\Delta S_{\text {system }} < 0$$ and $$\Delta S_{\text {Surrounding }} > 0$$

$$\Delta S_{\text {system }} < 0$$ and $$\Delta S_{\text {surrounding }} < 0$$

AP EAPCET 2021 - 19th August Evening Shift

MCQ (Single Correct Answer)

-0

Two flasks $$A$$ and $$B$$ have equal volumes. $$A$$ is maintained at $$300 \mathrm{~K}$$ and $$B$$ at $$600 \mathrm{~K}$$. Equal masses of $$\mathrm{H}_2$$ and $$\mathrm{CO}_2$$ are taken in flasks $$A$$ and $$B$$ respectively. Find the ratio of total KE of gases in flask $$A$$ to that of $$B$$.

1 : 2

11 : 1

33 : 2

55 : 7

AP EAPCET 2021 - 19th August Evening Shift

MCQ (Single Correct Answer)

-0

When the temperature of 2 moles of an ideal gas is increased by 20$$^\circ$$C at constant pressure. Find the work involved in the process.

40R

15R

20R

AP EAPCET 2021 - 19th August Morning Shift

MCQ (Single Correct Answer)

-0

If a chemical reaction is known to be non-spontaneous at 298 K but spontaneous at 350 K, then which among the following conditions is true for the reaction?

$$\Delta G=-v e, \Delta H=-v e, \Delta S=+ ve$$

$$\Delta G=+v e, \Delta H=+v e, \Delta S=+v e$$

$$\Delta G=-v e, \Delta H=+v e, \Delta S=+v e$$

$$\Delta G=+ ve, \Delta H=+ ve, \Delta S=-v e$$

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