Download App

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

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry5. Thermodynamics and thermochemistry1 Mark
MCQ
The cooling in refrigerator is due to
  • A
    Reaction of the refrigerator gas
  • B
    Expansion of ice
  • ✓
    The expansion of the gas in the refrigerator
  • D
    The work of the compressor
✓

Answer

Correct option: C.
The expansion of the gas in the refrigerator
(c)This is based on Joule-Thomson effect.

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

The molecule having one unpaired electron is
→
An organic compound having molecular mass $60$ is found to contain $C = 20\%$, $H= 6.67\%$ and $N=46.67\%$ while rest is oxygen. On heating it gives $N{H_3}$ along with a solid residue. The solid residue give violet colour with alkaline copper sulphate solution. the compound is
→
Select correct statement
→
The value of equilibrium constant of the reaction

$HI \rightleftharpoons \frac {1}{2} H_{2(g)} + \frac{1}{2} I_{2(g)}$

is $8.0$. The equilibrium constant of the reaction

$H_{2( g )} + I_{2(g)} \rightleftharpoons   2HI_{ ( g )}$ will be

→
Following reaction, ${(C{H_3})_3}CBr + {H_2}O \to {(C{H_3})_3}COH + HBr$ is an example of
→
Identify the correct sequence of increasing number of $\pi$-bonds in the structure of  the following molecules

$(I)\, H_2S_2O_6$           $(II)\, H_2S_2O_3$           $(III)\,H_2S_2O_5$ 

→
According to modern periodic law the properties of elements repeat at regular intervals  when the elements are arranged in order of
→
Which of the following set of quantum numbers belong to highest energy
→
The size of nucleus is of the order of
→
Which one of the following is a free-radical substitution reaction
→