Download App

Thermodynamics — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistryThermodynamics1 Mark
MCQ
Hess's law is related to:
  • A
    Change in heat during a reaction
  • B
    Rates of reaction
  • C
    Equilibrium constant
  • D
    Influence of pressure on volume of a gas
✓

Answer

  1. Change in heat during a reaction

Explanation:

Hess's law is related to change in heat during a reaction.

It states that the total change in heat enthalpy during the complete course of reaction is same whether the change is brought in one step or in several steps by one method or other method.

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 Thermodynamics→Thermodynamics — all question types→Chemistry STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

If $H-X$ bond length is $2\,\mathop A\limits^o $ and $H-X$ has dipole moment $5.12 \times 10^{-30}\,C-m$, the $\%$ of covalent character of molecule is ............. $\%$
→
Which is a buffer solution
→
Beilstein test is used for the estimation of which one of the following elements?
→
Which of the following bond has the most polar character
→
From the given set of species, point out the species from each set having least atomic radius 

$(A)\, F^-, Na^+, Mg^{+2}$              $(B) \,Ni, Cu, Zn$
$(C)\, N^{-3}, Cs^+, H^-$                $(D)\, Li, He, Be^{+2}$

→
An organic compound has a triple bond and not double bond. It can be tested by
→
Dichloro carbene form by chloroform and alc. $KOH$, which reaction involve this carbene
→
Enthalpy change of the reaction $4H(g) \to 2H_2(g)$ is $-869.6\, kJ$. The bond dissociation energy of $H-H$ bond is .....$kJ$
→
The electron is
→
Match List $I$ with List $II$.

List $I$ (Compound) List $II$ (Shape/geometry)
$A$. $\mathrm{NH}_3$ $I$. Trigonal Pyramidal
$B$. $\mathrm{BrF}_5$ $II$. Square Planar
$C$. $\mathrm{XeF}_4$ $III$. Octahedral
$D$. $\mathrm{SF}_6$ $IV$. Square Pyramidal

Choose the correct answer from the options given below:

→