MCQ
If $900\,J/g$ of heat is exchanged at boiling point of water, then what is increase in entropy.......$J/mole$
- ✓$43.4 $
- B$87.2$
- C$900$
- D$0$
✓
Answer
Correct option: A.
$43.4 $
(a)$\Delta {S_{vap}} = \frac{{(900 \times 18)}}{{373}} = 43.4\,\,J{K^{ - 1}}\,mo{l^{ - 1}}$.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The number of sigma and pi-bonds in $1-$ butene $3-$ yne are
→Equivalent weight of $KMn{O_4}$ acting as an oxidant in acidic medium is equal to
→A well stoppered thermos flask contains some ice cubes. This is an example of a
The $IUPAC$ name of $C{H_3} - C{H_2}CH = \mathop {\mathop {CC{H_2}OH}\limits_{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} }\limits_{C{H_3}\,\,\,\,\,\,\,\,\,\,\,} $ will be
→The element with which of the following outer electron configuration may exhibit the largest number of oxidation states in its compounds
Which one of the following is the correct decreasing order of boiling point
Pyrosilicate ion is
The correct sequence of bond order is
The solubility of $CaF_2$ in a solution of $0.1\,M\,Ca(NO_3)_2$ is.
→Energy levels $A, B, C$ of a certain atom corresponds to increasing values of energy, $i.e.,$ $E_A < E_B < E_C .$ If $\lambda _1, \lambda _2$ and $\lambda _3$ are the wavelength of radiations corresponding to the transitions $C$ to $B, B$ to $A$ and $C$ to $A$ respectively, which of the following statement is correct :
→