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2 answers:
Answer:
OB) 1.0 atm
Explanation:
we have a mixture of hydrogen, nitrogen and methane and we have the following data
According to the law of Dalton the sum of the partial pressures of each gas is equal to the total pressure
Total pressure equation
now we clear the partial pressure of nitrogen from the equation
the partial pressure of nitrogen is 1 atm
the correct answer is OB) 1.0 atm
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Answer:
The barrier has to be 34.23 kJ/mol lower when the sucrose is in the active site of the enzyme
Explanation:
From the given information:
The activation barrier for the hydrolysis of sucrose into glucose and fructose is 108 kJ/mol.
In this same concentration for the glucose and fructose; the reaction rate can be calculated by the rate factor which can be illustrated from the Arrhenius equation;
Rate factor in the absence of catalyst:
Rate factor in the presence of catalyst:
Assuming the catalyzed reaction and the uncatalyzed reaction are taking place at the same temperature :
Then;
the ratio of the rate factors can be expressed as:
Thus;
Let say the assumed temperature = 25° C
= (25+ 273)K
= 298 K
Then ;
The barrier has to be 34.23 kJ/mol lower when the sucrose is in the active site of the enzyme