InterviewSolution
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InterviewSolution
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The decompostion NH3 gas on a heated tungsten surface gave the following results:Initial pressure (mm of Hg) 65 105Half-life (sec)Calculate approximately the values of x and y(A) x 410 sec, y 115 mm of Hg(C) x 490 sec, y 120 mm of Hg7.185y670 820290 x(B) x(D) x467 sec , y-150 mm of Hg430 sec, y 105 mm of Hg |
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Answer» k = 2.5 × 10−4mol−1L s−1Order of reaction = 0Decomposition reaction of NH3Here NH3 has 2 mol then N2and H2has 1 and 3 moles respectivelyUse the formula of rate of reactionUse this formula we getAnother formula of rate, Rate = k[NH3]xGiven that order of reaction x = 0Plug the values we getPlug the value of k we getRate of production of N2= k = 2.5 × 10−4mol L-1s−1Rate of production of H2= 3k = 3 x 2.5 × 10−4mol L-1s−1= 7.5 × 10−4mol L-1s−1 ans is option B |
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