Chemistry · Challenge

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Heat of reactionRunning
Heat bridge. Amount of reactant at 2.9 mol. Heat released 57000 J, ΔH × moles 110200 J. Currently δh × moles is over by 53200 J.TUNING57,000 J1,10,200 J2.9 mol
t = 0.0s

Heat released

57000J

ΔH × moles

110200J

Δh × moles is over by 53200 J

2.9 mol

Heat bridge. Amount of reactant at 2.9 mol. Heat released 57000 J, ΔH × moles 110200 J. Currently δh × moles is over by 53200 J.

What has to balanceΔH=qn\Delta H = \frac{q}{n}

What is happening

You take control of a calorimeter checking a new hand-warmer formula.

The amount of reactant on the sheet cannot be right. The run released 57 kJ, and the formula is rated at 38 kJ per mole.