1
AP EAPCET 2022 - 4th July Morning Shift
+1
-0

Identify the reaction/process in which the entropy increases.

A
$$\mathrm{H}(\mathrm{g})+\mathrm{H}(g) \longrightarrow \mathrm{H}_2(g)$$
B
$$\mathrm{H}_2 \mathrm{O}(\mathrm{g}) \longrightarrow \mathrm{H}_2 \mathrm{O}(\mathrm{s})$$
C
$$\mathrm{H}_2 \mathrm{O}(\mathrm{l}) \longrightarrow \mathrm{H}_2 \mathrm{O}(\mathrm{g})$$
D
$$A(g)+B(g)+C(s) \longrightarrow 2 D(s)$$
2
AP EAPCET 2022 - 4th July Morning Shift
+1
-0

State $$1 \rightleftharpoons$$ State $$2 \rightleftharpoons$$ State 3 $$\left(\begin{array}{l}T=300 \mathrm{~K} \\ p=15 \mathrm{bar} \\ 1 \mathrm{~mol}\end{array}\right)\left(\begin{array}{l}T=300 \mathrm{~K} \\ p=10 \mathrm{bar} \\ 1 \mathrm{~mol}\end{array}\right)\left(\begin{array}{l}T=300 \mathrm{~K} \\ p=5 \mathrm{bar} \\ 1 \mathrm{~mol}\end{array}\right)$$

Above shows a cyclic process. Calculate the total work done during one complete cycle. [Assume a single step to reach the next state].

A
25/3 L bar
B
$$-$$25/3 L bar
C
50/3 L bar
D
$$-$$50/3 L bar
3
AP EAPCET 2021 - 20th August Morning Shift
+1
-0

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.

A
$$\Delta S_{\text {system }} > 0$$ and $$\Delta S_{\text {surrounding }} > 0$$
B
$$\Delta S_{\text {system }} > 0$$ and $$\Delta S_{\text {surrounding }} < 0$$
C
$$\Delta S_{\text {system }} < 0$$ and $$\Delta S_{\text {Surrounding }} > 0$$
D
$$\Delta S_{\text {system }} < 0$$ and $$\Delta S_{\text {surrounding }} < 0$$
4
AP EAPCET 2021 - 19th August Evening Shift
+1
-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 $$B$$.

A
1 : 2
B
11 : 1
C
33 : 2
D
55 : 7
EXAM MAP
Medical
NEET