KCET 2010 Chemistry Solved Paper

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Question : 49 of 60
 
Marks: +1, -0
The following data is obtained during the first order thermal decomposition of 2A(g)⟶B(g)+C(s), at constant volume and temperature.
 Sr. No.  Time  Total pressure in Pascal
 1.  At the end of 10 minutes  300
 2.  After completion  200

The rate constant in min−1 is
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