If a temperature increase from 12. 0 °C to 20. 0 °C doubles the rate constant for a reaction. What is the value of the activation barrier for the reaction is 60.155KJ/mol.
<h3>What is activation energy? </h3>
Activation energy is defined as the minimum amount of energy required by molecules to occur a chemical reaction. It is denoted by Ea.
Given,
T1 = 12+273 = 285K
T2 = 20 +273 = 293K
Rate constant = k2/k1 = 2:1
Using arrhenius equation which give relationship between constant of reaction and temperature is
In(k2/k1) = Ea/(R[1/T1 - 1/T2]
where, Ea is the activation energy
and R is the gas constant
T1 is the initial temperature
T2 is the final temperature
In2= Ea/R[(1/285) - (1/293)]
Ea = In2 × 8.314 ×285×293/8
Ea = 0.301 ×8.314 ×285×293/8
Ea = 60155J/mol
Ea = 60.155KJ/mol.
Thus we calculated that the activation energy for a reaction at 12°C to 20°C is 60.155KJ/mol.
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Answer:
P = 164 Atm
Explanation:
PV = nRT => P = nRT/V
n = 10.0 moles
R = 0.08206 L·Atm/mol·K
T = 27.0°C = 300 K
V = 1.50 Liters
P = (10.0 mol)(0.08206 L·Atm/mol·K )(300 K)/(1.50 Liters) = 164.12 Atm ≅ 164 Atm (3 sig. figs.)
I’m sure it’s c, I’m just trying to answer my first question, I’m pretty good at science, buh I’m yet to learn this
Answer:
Explanation: Ammonia is made out of one nitrogen and three hydrogen atoms. Its structure is tetrahedral. Ammonia is used in nitric acid production, as a fertilizer, and a cleaning solution.
NH3, normally found as a gas, it is caustic and harmful in longterm exposure. NH3 has a boiling point of -33 Celsius, and must be stored under pressure, or at low temperatures.
Ammonia is regulated in the United States as a substance that is a non-flamable gas. However, it still meets the definition of a material that is toxic by inhalation and requires a hazardous safety permit.
Ammonia is usually a gas with a pungent odor. Ammonia used commercially is usually named anhydrous ammonia. An exposure to a very high concentration of ammonia could result in lung damage and death
Ammonia is a gas with a strong smell. Its chemical formula is NH3. If exposed to a very high concentration of ammonia, it can cause lung damage and death.
Ammonia, NH3, is a compound that is has a strong smell. Even though the gas helps the nutrition of our planet, it can cause serious problems to our health.
Ammonia, NH3, is a pungent gas. It is colorless, and used to manufacture fertilizers and
Answer:
b. I2
Explanation:
I-I is covalently bonded and also diatomic , that's y!
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