Download App

5. Thermodynamics and thermochemistry — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry5. Thermodynamics and thermochemistry1 Mark
MCQ
For the process dry ice $\xrightarrow{{}}\,C{O_2}(g)$
  • A
    $\Delta H$ is positive while $\Delta \rho $ is negative
  • B
    Both $\Delta H$ and $\Delta \rho $ are negative
  • ✓
    Both $\Delta H$ and $\Delta \rho $ are positive
  • D
    $\Delta H$ is negative while $\Delta \rho $ is positive
✓

Answer

Correct option: C.
Both $\Delta H$ and $\Delta \rho $ are positive
(c)Both $\Delta H$ and $\Delta p$ are positive.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 5. Thermodynamics and thermochemistry→5. Thermodynamics and thermochemistry — all question types→Chemistry STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Spectrum of $L{i^{2 + }}$ is similar to that of
→
In aqueous solution of $AgCl(s)$, $AgBr(s)$ and $AgI(s)$. Find the ratio $[Cl^- ]$ : $[Br- ]$ : $[I^-]$ at equilibrium if $K_{sp}\, (AgCl)=10^{-10}$, $K_{sp}\, (AgBr) = 10^{-13}$ , $K_{sp}\, (AgI) = 10^{-16}$
 
→
Identify the incorrect order
→
Which of the following nuclear reactions will generate anisotope ?
→
${C_7}{H_9}N$ has how many isomeric forms that contain a benzene ring
→
Product $(A)$ is
→
Using the Gibb's energy change, $\Delta G^o  = +63.3 \,kJ,$ for the following reaction,

$Ag_2CO_{3(s)} \rightleftharpoons 2Ag^+_{(aq)} + CO^{2-}_{3(s)}$

in water at $25\, ^o C$ is   $(R = 8.314\, J\, K^{-1}\,mol^{-1})$

→
What will be the $IUPAC$ name of the given compound

$\begin{array}{*{20}{c}}
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_3}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2} - C{H_3}} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\ 
  {C{H_3} - CH - CH - C{H_2} - CH - C{H_3}} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {C{H_2} - C{H_{3\,\,\,\,}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} 
\end{array}$

→
What will be hydrogen ion concentration in moles $litr{e^{ - 1}}$ of a solution, whose $pH$ is $ 4.58$
→
The solubility (in $mol\,L^{-1}$ ) of $AgCl\,\,(K_{sp} = 1.0 \times 10^{-10}$ ) in a $0.1\,M\,KCl$ solution will be
→