The desired gas temperature exiting the flame mixing chamber and entering the reaction chamber of a thermal incinerator is 600oC. The polluted airflow rate is 550 m3/min at 77oC. The fuel gas (methane) is available at 20oC and the flare draws in supplemental air (at 25oC) at a rate of 14 air/kg fuel gas. Calculate the required flow of methane. Ignore the heat losses and heat generation from the pollutant combustion (that part of the flare would be too difficult to predict based on the variable emissions). Give your answer in kg/min and in m3/min

i believe the answer is a.

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.