Question

В сосуд, содержащий 2,3 кг воды при 20градусах, опускают кусок олова, нагретый до 230 градусов. температура воды в сосуде повысилась на 15 градусов . вычислить массу олова. испарением воды принебречь.

Answer 1

Сумма Q=0
Q=c*m*t

Q1+Q2=0

Q1=15*2.3*4200
Q2=m2*218*(35-230)
Q1=144900
Q2=m2*(-42510)
144900+-42510*m2=0
m2=3.4 кг

Answer 2

Calculation of the Mass of Lead

To calculate the mass of lead, we can use the principle of heat transfer. The heat gained by the water is equal to the heat lost by the lead. We can use the formula:

Q_water = Q_lead

Where: - Q_water is the heat gained by the water - Q_lead is the heat lost by the lead

The heat gained by the water can be calculated using the formula:

Q_water = m_water * c_water * ΔT_water

Where: - m_water is the mass of water - c_water is the specific heat capacity of water - ΔT_water is the change in temperature of the water

The heat