Methane reacts with oxygen to produce carbon dioxide water and heat. how many kcal are produced when 5.00 g of methane react

=  66.33 kCal

Explanation:

The combustion of methane is given by the equation;

CH4(g) + 2O2(g) → CO2(g) + 2H2O(l); ΔH = -890.3 kJ/mol

The molar enthalpy of combustion of methane is -890.3 kJ/mol

This means 1 mole of CH4 yields 890.3 kJ/Mol

But, molar mass of methane is 16.04 g/mol

Therefore;

Heat produced by 5.0 g of methane will be;

= (5.0 g/ 16.04 g/mol)× 890.3 kJ/mol

= 277.525 kJ/mol

But; 1 kcal = 4.184 kJ

thus; = 277.525 /4.184

         =  66.33 kCal

passed in september 1935, these laws are known as nuremberg laws.   they forbid jews from marrying but not directly forced them to divorce aryans. what is most noticeable is the fact that the jews were defranchised, meaning by this that they were not expected to have any civil rights, including the right to vote. the right answer is deprived of the right to vote.

c. is the answer

by love gaming