Answer: D the rate that varies more with temperature
Explanation: reaction with greater activation energy is not feasible ordinarily as the reacting molecules have little or no energy to overcome the activation energy. But as the temperature of the reaction is increased, the reacting molecules gains more energy to overcome the energy barriers(activation energy) hence proceeding to form products. In this case, the rate of the reaction depends on the temperature. So an increase in temperature will increase the kinetic energy of the molecules thereby increasing the rate of the reaction and a decrease in temperature will leads to a decrease in the rate of the reaction.
Its an atom
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Lewis dot structure for phosphorus
Answer:
0.400 M
Explanation:
The reaction given is
H₂(g) + Br₂(g) ⇄ 2HBr(g)
So, the stoichiometry is 1 mol of H₂ for 1 mol of Br₂ to form 2 moles of HBr.
By the molas masses given, the number of moles of each compound is (mass/molar mass):
nH₂ = 1.374/2.0159 = 0.681581427 mol
nBr₂ = 70.31/159.81 = 0.439959952 mol
The number of moles of H₂ in the equilibrium will be:
nH₂e = 0.566/2.0159 = 0.280767895 mol
So the number of moles that reacts is the initial less the equilibrium:
n = 0.400813531 mol
For the stoichiometry, the number of moles that is formed of HBr must be double, which will be the number of moles in equilibrium:
nHBr = 0.801627063
The molar concentration is the number of moles divided by the volume:
0.801627063/2.00
0.400 M