Download App

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

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry5. Thermodynamics and thermochemistry1 Mark
MCQ
The total amount of energy in the universe is fixed, but
  • ✓
    Disorder is increasing
  • B
    Lightning is increasing
  • C
    Matter is increasing
  • D
    Gravitation is decreasing
✓

Answer

Correct option: A.
Disorder is increasing
(a)Entropy (a measure of disorder) of universe is increasing toward maximum. This is II law of thermodynamics.

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→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Alkaline earth metals have only positive oxidation state. This is due to their:
→
White lead is
→
he classical smog was first observed in :
→
$0.01$ moles of a weak acid $HA \left( K _{ a }=2.0 \times 10^{-6}\right)$ is dissolved in $1.0\, L$ of $0.1\, M\, HCl$ solution. The degree of dissociation of $HA$ is ............. $\times 10^{-5}$

(Round off to the Nearest Integer).

[Neglect volume change on adding $HA$. Assume degree of dissociation $<< 1]$

→
Boric acid is polymeric due to:
→
A $300\,mL$ bottle of soft drink has $0.2\,M CO _2$ dissolved in it. Assuming $CO _2$ behaves as an ideal gas, the volume of the dissolved $CO _2$ at $STP$ is $......mL$. (Nearest integer) Given: At $STP$, molar volume of an ideal gas is $22.7\,L\,mol ^{-1}$
→
Correct Lewis acidity order of $BX_3$ is
→
Based on knowledge of solid compounds and bond strengths, which of the following reactions is considered non $-$ spontaneous due to the extremely high activation energy but once started becomes extremely spontaneous?
→
The $IE_1$ and $IE_2$ of three elements $A, B$ and $C$ are given as : ( $IE$ in $kJ/mol$ )

    $A$   $B$   $C$
  $IE_1$   $400$   $550$   $1150$
  $IE_2$   $2650$   $1070$   $2090$

Identify the element which represent a nonmetal.

→
$IUPAC $ name of $C{H_3} - CH = CH - COOH$
→