D an average train goes 300 km/h or 190-220 mph
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Answer : a) 40075.14 J/mol
Explanation :
According to the Arrhenius equation,
or,
where,
= rate constant at
= k
= rate constant at
= 10 k
= activation energy for the reaction = ?
R = gas constant = 8.314 J/mole.K
= initial temperature = 440 K
= final temperature = 550 K
Now put all the given values in this formula, we get
:
Therefore, the activation energy for the reaction is 40075.14J/mol.
Answer:
The coefficient is 1
Explanation:
CaO(s) + CO2(g) -> CaCO3(s)
In the balanced equation, the coefficient for CaO is 1
The coefficient represents the number of moles of a compound in the stoichiometry of the reaction