A(g) 2B (g) ; _rH = 20 , kJ/mol at 300 ,K. if C_ p,m (A) = 20 , J… - Vidyadip

MCQ

$A(g) \to 2B (g)$ ; $\Delta_rH = 20\, kJ/mol$ at $300\,K$. if $C_{p,m} (A) = 20\, J\,K^{-1} \,mol^{-1}$ $C_{p,m} (B) = 5\, J\,K^{-1} \,mol^{-1}$ which of the following statement is correct -

A
$\Delta H$ will be increase on increasing temperature
✓
$\Delta H$ will be decrease on increasing temperature
C
$\Delta H$ will be unaffected by temperature change
D
$\Delta H$ will be decrease on decreasing temperature

✓

Answer

Correct option: B.

$\Delta H$ will be decrease on increasing temperature

b

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