Question

Определите количество теплоты, которое необходимо для нагревания 50 г цинка от 10 градусов Цельсия до 60 градусов Цельсия.

Answer 1

Q=mc(t1-t2)=0,05*380(60-10)=950

Answer 2

Calculating Heat Required to Heat Zinc

To calculate the heat required to heat 50g of zinc from 10 degrees Celsius to 60 degrees Celsius, we can use the formula:

Q = mcΔT

Where: - Q = heat energy - m = mass of the substance - c = specific heat capacity of the substance - ΔT = change in temperature

Specific Heat Capacity of Zinc

The specific heat capacity of zinc is approximately 0.387 J/g°C.

Calculation

Using the formula Q = mcΔT, we can calculate the heat required:

Q = 50g * 0.387 J/g°C * (60°C - 10°C)

Q = 50g * 0.387 J/g°C * 50°C

Q = 965 J

Therefore, the heat required to heat 50g of zinc from 10°C to 60°C is approximately 965 joules.