Three quarters of the elements are
1 answer:
You might be interested in
Combustion can be defined as the reaction of a compound with oxygen. The enthalpy of combustion of octane is for
.
The enthalpy of reaction is the amount of heat energy absorbed or lost by the molecules in the chemical reaction.
The enthalpy of combustion is the amount of heat energy released by the compound in the reaction with oxygen.
The reaction in which heat is liberated with the reaction of a compound with oxygen has an enthalpy of combustion, equivalent to the enthalpy of reaction.
The combustion of octane can be given as:
Thus, the reaction has combustion energy equivalent to the enthalpy of the reaction is . Thus, option B is correct.
Learn more about enthalpy of reaction, here:
<h2>Hello!</h2>
The answer is:
The correct option is option C.
To calculate the volume of the gas sample, we need to use the Ideal Gas Law, this equation is used to relate the pressure, the volume, the mass and the temperature of a gas, so, we can isolate the volume from it.
The Ideal Gas Law equation is equal to:
Where,
P is the pressure (in atm)
V is the volume (in liter)
n is the mass of the gass (in mole)
T is the temperature of the gass (absolute temperature)
So, from the statement we know that:
Then, substituting and calculating we have:
Now, rounding to the nearest whol number we have that the volume is equal to 36 L.
Hence, the correct option is option C.
Have a nice day!