Which of the following statements about the compound HCl is true?
2 answers:
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Answer:
Activation energy for the uncatalyzed reverse reaction = 103 kJ/mol
Explanation:
Activation energy decreases from = 56 kj/mol to 35 kj/mol
products = 78 KJ lower in energy than reactants
Activation energy for the uncatalyzed reverse reaction = 103 kJ/mol
attached below are the sketches of approximate energy-level for both catalyzed and uncatalyzed reactions
We will call D1 and D2 the volume of dextrose at 2.5% and 30% respectively
D1 + D2 = 500 (1)
D1*2,5/100 + D2*30/100 = 500*10/100 (2)
(2,5D1+30D2)/100 = 50
2,5D1 +30D2 = 50*100 = 5.000 (2)
D1 = 500 - D2 Now we clear D1 in (1)
2,5(500-D2) + 30D2 = 5.000 and we substitute in (2)
1.250 - 2,5D2 + 30D2 = 5.000
27,5D2 = 5.000 - 1.250 = 3.750
D2 = 3.750/27,5 = 136ml +4/11ml
D1 = 500ml - 136ml +4/11ml
D1 = 363ml +7/11ml
ANSWER 363ml+7/11 ml of dextrose 2,5% and 136ml+4/11 ml dextrose 30%