1
AP EAPCET 2022 - 4th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

The statement related to law of definite proportions is

A
the ratio of oxygen in $$\mathrm{H}_2 \mathrm{O}$$ and $$\mathrm{H}_2 \mathrm{O}_2$$ with respect to fixed mass of hydrogen atom is a whole number.
B
% of oxygen in $$\mathrm{H}_2 \mathrm{O}$$ is constant irrespective of the source.
C
equal volume of all gases at the same temperature and pressure should contain equal number of molecules.
D
matter can neither be created nor destroyed.
2
AP EAPCET 2022 - 4th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

What are the oxidation states of three Br atoms in $$\mathrm{Br}_3 \mathrm{O}_8$$ molecule?

A
$$+5,+6,+5$$
B
$$+6,+4,+6$$
C
$$+7,+2,+7$$
D
$$+6+3,+7$$
3
AP EAPCET 2022 - 4th July Morning Shift
MCQ (Single Correct Answer)
+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
$$A(g)+B(g)+C(s) \longrightarrow 2 D(s)$$
4
AP EAPCET 2022 - 4th July Morning Shift
MCQ (Single Correct Answer)
+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
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