Thermodynamics # 2

Classical Mechanics Level 1

1 mole of ammonium chloride vaporizes @ 345K ........ the enthalpy change of the reaction being 1.725 KJ................ what is the Entropy change in this process?? ( in Joule per Kelvin )


The answer is 5.

Mayank Holmes by Mayank Holmes , 25, India

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2 solutions

Chirag Gupta
Jun 5, 2014

delta H=Tdelta s therefor delta H/T=answer I(considring equilibrium G=H-TS DERIVATIVE OF THIS GIBBS LAW EQUATION)

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Mayank Holmes
May 29, 2014

entropy change = ( ( change in enthalpy of the reaction )/(absolute temperature) )

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why only s,p,d,f block is named in modern periodic why not A B C D or else

Sudhir Yadav - 7 years ago

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Because SPDF are name of subshell and element whose outermost electron enter in spdf orbitol they arepresent in spdf block respectivly Hence.......

vaishnav saykar - 7 years ago

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you r right what u r saying but my question is why it is named as spdf only as these alphabets are so different in sequence ........

Sudhir Yadav - 7 years ago

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