What will generate more heat when burning 1kg of coal or 2kg of peat?

What will generate more heat when burning 1kg of coal or 2kg of peat? Specific heat of combustion of coal = 30 MJ / kg, peat = 14 MJ / kg.

Initial data: m1 (mass of coal) = 1 kg; m2 (mass of peat) = 2 kg.

Reference values: q1 (specific heat of combustion of coal) = 30 MJ / kg; q2 (specific heat of combustion of peat) = 14 MJ / kg.

1) The amount of heat that will be released during the combustion of coal:

Q1 = q1 * m1 = 30 * 1 = 30 MJ.

2) The amount of heat released during the combustion of peat:

Q2 = q2 * m2 = 14 * 2 = 28 MJ.

Since 30 MJ> 28 MJ, more heat will be released during the combustion of 1 kg of coal.