How much will the temperature of water change, whose mass is 10 kg, if you transfer to it the energy

How much will the temperature of water change, whose mass is 10 kg, if you transfer to it the energy released during the combustion of kerosene weighing 50 g

Data: mw (mass of heated water) = 10 kg; mk (mass of completely burnt kerosene) = 50 g (0.05 kg).

Reference values: Sv (specific heat capacity of water) = 4200 J / (kg * ºС); qк (specific heat of combustion of kerosene) = 46 * 10 ^ 6 J / kg.

The temperature rise of the taken water can be determined from the equality: Sv * mw * Δt = mk * qk, whence Δt = mk * qk / (Sv * mw).

Let’s perform the calculation: Δt = 0.05 * 46 * 10 ^ 6 / (4200 * 10) = 54.76 ºС.

Answer: The temperature of the taken water will increase by 54.76 ºС.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.