How many liters of oxygen at STP are needed to react with excess methane in the following reaction, in order to produce 325 kJ of energy?
CH4 2 02 → CO2 + H20
DH = -890.4 kk

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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