How much heat is evolved when 2 moles of methane (ch4) is burned according to this equation? ch4(g) + 2o2(g) co2(g) + 2h2o(l) hcomb = -890 kj/mol. a. -1780 kj. b. 445 kj. c. 1780 kj. d. 27,400 kj

To calculate the amount of heat evolved when 2 moles of methane that is burned, we use the value of the heat of combustion and multiply it by the number of moles. We calculate as follows:

Heat = 2 mol ( - 890 kJ/mol) = -1780 kJ > OPTION A

Cause its being chemically applied?