How much energy does it take to melt 5 kilogram ice at 0 degrees?
| August 12, 2021 | education
To estimate the cost of thermal energy for melting 5 kg of ice, we apply the formula (ice before heat transfer was at the melting temperature): Q = λ * m.
Variables and constants: λ – specific heat of melting of ice (λ = 3.4 * 10 ^ 5 J / kg); m is the mass of ice (m = 5 kg).
Calculation: Q = λ * m = 3.4 * 10 ^ 5 * 5 = 17 * 10 ^ 5 J = 1.7 MJ.
Answer: To melt 5 kg of taken ice, you need to spend 1.7 MJ of thermal energy.
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