Answer: 0.374 mol CO2
Explanation:
We can calculate the number of moles of CO, n, required to produce the specified quantity of heat. This is done by dividing the required released heat, q, by the enthalpy of formation per unit mole of the substance,
, based on the chemical equation, such that:
![$$We have the following values for the variables:\displaystyle q = -147\ kJ \\\displaystyle \Delta H = -787\ kJ](https://tex.z-dn.net/?f=%24%24We%20have%20the%20following%20values%20for%20the%20variables%3A%5Cdisplaystyle%20q%20%3D%20-147%5C%20kJ%20%5C%5C%5Cdisplaystyle%20%5CDelta%20H%20%3D%20-787%5C%20kJ)
![$$We proceed with the solution:\begin{align} \displaystyle n &= \frac{q}{ \frac{\Delta H}{2\ mol\ CO}}\\ &= \frac{-147\ kJ}{\frac{-787\ kJ}{2\ mol\ CO}}\\ &\approx \boxed{\mathbf{ 0.374\ mol}} \end{align}](https://tex.z-dn.net/?f=%24%24We%20proceed%20with%20the%20solution%3A%5Cbegin%7Balign%7D%20%5Cdisplaystyle%20n%20%26%3D%20%5Cfrac%7Bq%7D%7B%20%5Cfrac%7B%5CDelta%20H%7D%7B2%5C%20mol%5C%20CO%7D%7D%5C%5C%20%26%3D%20%5Cfrac%7B-147%5C%20kJ%7D%7B%5Cfrac%7B-787%5C%20kJ%7D%7B2%5C%20mol%5C%20CO%7D%7D%5C%5C%20%26%5Capprox%20%5Cboxed%7B%5Cmathbf%7B%200.374%5C%20mol%7D%7D%20%5Cend%7Balign%7D)
Therefore, 0.374 mol of CO2 must be reacted in order to produce 147 kJ of energy?
Answer:
By designing new technology that would prove new information
Explanation:
Answer:
The correct answer is a. The volume of the gas increases.
Explanation:
In this case, we apply Boyle Mariotte's Law: for a given gas mass at constant temperature, the pressure and volume vary inversely proportionally (the higher the pressure, the lower the volume and vice versa).
If the pressure reduced, the volume increases according to the formula: P1xV1 = P2xV2
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