Of the following,the largest value of entropy | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) Entropy is a measure of the randomness or disorder of a system. For gaseous molecules,entropy generally increases with an increase in the complexi

Vedclass · Accepted Answer

$C_2H_6$

Vedclass · Answer

(B) Entropy is a measure of the randomness or disorder of a system. For gaseous molecules,entropy generally increases with an increase in the complexity and size of the molecule,as there are more degrees of freedom for rotation and vibration. Comparing the given molecules: $H_2$ (diatomic,small) $CH_4$ (polyatomic,$5$ atoms) $C_2H_2$ (polyatomic,$4$ atoms) $C_2H_6$ (polyatomic,$8$ atoms) Since $C_2H_6$ has the largest number of atoms and the most complex structure among the choices,it possesses the highest degree of randomness and thus the largest entropy value. The standard molar entropy values $(J \ K^{-1} \ mol^{-1})$ at $298 \ K$ are: $C_2H_2$$200.8$$H_2$$130.58$$C_2H_6$$229.5$$CH_4$$186.2$

Of the following,the largest value of entropy at $25^{\circ} C$ and $1 \ atm$ is that of

Similar Questions

For a $Carnot$ engine,the source is at $500 \ K$ and the sink at $300 \ K$. What is the efficiency of this engine?

For a spontaneous process,

Mixing of non-reacting gases is generally accompanied by

What is the entropy change in $J K^{-1}$ during the melting of $27.3 \ g$ of ice at $0^{\circ} C$? (Latent heat of fusion of ice $= 330 \ J g^{-1}$)

For the conversion $C$ (graphite) $\to C$ (diamond),the $\Delta S$ is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module