IIT JAM
Anand Kanade Asked a Question
December 1, 2020 10:09 pmpts 30 pts
  • IIT JAM
  • Chemistry (CY)

6. among the following, the reaction that is accompanied by a decrease in the entropy is a) n,g) +3h,() 2nh,(g) (b) ch20,t) +60,(8) 6co,(g)+ 61,0() (c) pci(s pc

6. Among the following, the reaction that is accompanied by a decrease in the entropy is a) N,g) +3H,() 2NH,(g) (b) CH20,t) +60,(8) 6CO,(g)+ 61,0() (c) PCI(s PCI() + Cly(g) (d) 2H,0(1) 2H2g) + O2 8)
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  • Priyanshu kumar Best Answer
    In option A the number of moles of gaseous components decreases in forward reaction...so it accompanied with decreases in entropy
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    Priyanshu kumar
    More is the number of gaseous components more is degree of randomness and hence more is the entropy
  • Dinesh khalmaniya thankyou
    option a actually randomness increase, entropy increase. order of randomness will be gas>liquid>solid so if solid change to liquid or gas then randomness increase and hence entropy...
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    Dinesh khalmaniya
    got it??
  • Ashutosh singh
    The (a) I'd accompanied by a decrease in entropy. Because number of moles of gaseous compounds have decreased. Entropy is randomness. More the number of moles of gaseous components...
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    Anand Kanade
    thank you