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Chemistry-

General

Easy

Question

In which of the following reactions is $K subscript p end subscript less than K subscript c end subscript$ ?

$I_{2} (g) ⇌ 2 I (g)$
$2 B r C l (g) ⇌ C l_{2} (g) + B r_{2} (g)$
$C O (g) + 3 H_{2} (g) ⇌ C H_{4} (g) + H_{2} O (g)$
All of the above

The correct answer is: $C O open parentheses g close parentheses plus 3 H subscript 2 end subscript open parentheses g close parentheses rightwards harpoon over leftwards harpoon C H subscript 4 end subscript open parentheses g close parentheses plus H subscript 2 end subscript O left parenthesis g right parenthesis$

$I subscript 2 end subscript left parenthesis g right parenthesis rightwards harpoon over leftwards harpoon 2 I left parenthesis g right parenthesis$
$increment n equals n subscript p end subscript minus n subscript r end subscript$
$equals 2 minus 1 equals 1$
$K subscript p end subscript equals K subscript c end subscript left parenthesis R T right parenthesis$
$2 B r C l open parentheses g close parentheses rightwards harpoon over leftwards harpoon C l subscript 2 end subscript open parentheses g close parentheses plus B r subscript 2 end subscript left parenthesis g right parenthesis$
$increment n equals 0$
$K subscript p end subscript equals K subscript c end subscript open parentheses R T close parentheses to the power of 0 end exponent$
$K subscript p end subscript equals K subscript c end subscript$
$C O open parentheses g close parentheses plus 3 H subscript 2 end subscript open parentheses g close parentheses rightwards harpoon over leftwards harpoon C H subscript 4 end subscript open parentheses g close parentheses plus H subscript 2 end subscript O left parenthesis g right parenthesis$
$increment n equals 2 minus 4 equals negative 2$
$K subscript p end subscript equals K subscript c end subscript open parentheses R T close parentheses to the power of negative 2 end exponent$
$K subscript p end subscript less than K subscript c end subscript$

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