Which statement about the following reaction is correct?
ch4 (g) + 2o2 (g) yields co2 (g) + 2h2o(l) deltah = -890 kj
reacting one mole of oxygen (o2) absorbs 445 kj of energy
reacting one mole of oxygen (o2) releases 445 kj of energy
reacting one mole of methane (ch4) absorbs 890 kj of energy
reacting two moles of methane (ch4) releases 890 kj of energy
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Ответ:
reacting one mole of oxygen (O2) releases 445 kJ of energy
Explanation: Exothermic reactions are defined as the reactions in which energy is released in the form of heat and
for the reaction comes out to be negative.
According to the given balanced equation:
1 mole of methane reacts with 2 moles of oxygen and 890 kJ of energy is released.
Thus when the reaction is halved, the enthalpy also gets halved.
Thus
![\Delta H=-445kJ](/tpl/images/0485/8668/647ee.png)
Now half mole of methane reacts with 1 mole of oxygen and 445 kJ of energy is released.
Ответ:
first answer is 12x and the seconds answer is: they are both in simplest form buy one of em are in radical form and the other is in simplest form
Step-by-step explanation:
im sorryyy if it's wrong