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Answered

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How much energy is used to heat 250 g of ice from –15°C to steam at 105°C? (Hint: 5 steps, all positive)

Sagot :

keijosalonen

Answer:

Explanation: Q1 = mc(ice) ΔT (ice warms)

Q2 = ms (ice melts)

Q3 = mc((water) ΔT (water warms)

Q4 = mr (water boils)

Q5 = mc(vapour)ΔT

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