Check your assumptions. Your calculations are in error by a factor of ~20.
Also, these data are from an experiment in which the possibility of introducing H2O2 is nil, as the coolant was drawn directly from the building water pipes.
I can admit the POSSIBILITY that a liquid chemical fake for those setups where the coolant was contained in a tank, but even there the likelihood is very low.
Kevmo is correct in that you MUST consider the specific experimental setup to draw proper conclusions. Simply doing an enthalpy calculation for a single experiment and trying to use that to draw conclusions for ALL experiments is ridiculous.
Really? Show me.
I can admit the POSSIBILITY that a liquid chemical fake for those setups where the coolant was contained in a tank,
Excellent! Some people have claimed, even some here, that no chemical reaction could possibly release enough energy, by orders of magnitude! I'm glad you don't agree with that claim.
Simply doing an enthalpy calculation for a single experiment and trying to use that to draw conclusions for ALL experiments is ridiculous.
The purpose of my enthalpy calculation was simply to show that a chemical fake was possible.