FYKOS Year 29 Series 4 Problem 1 — Kofola's · FYKOS 29 #29.4.1

Physics · mechanics · thermodynamics

Problem

Let's have a Kofola (a Czech soft drink) with the energetic value

Q_{k}=1360kJ⁄\;\mathrm{kg}

and temperature

t_{k}=24\;\mathrm{°C}

and another Kofola, this time sugar-free, with the energetic value

Q_{free}=14.4kJ⁄\;\mathrm{kg}

and temperature

t_{free}=4\;\mathrm{°C}

. If we assume other behaviour and constants are very similar to water, what temperature would have a mixture of these two for which the total energy gain would be none.

Related theory

thermodynamics

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