Question

Priyanka

4 years ago Grade -10 (SEE) Physics Heat, Specific heat capacity

An iron ball 5kg, 100°C is dipped in water 10 kg at 20°C. Find final temp ?

1 Answer

Physical Quantities 27 Electricity & Magnetism 48 Motion 8 Measurement 4 Electricity 166 Physical Optics 80 Waves 117 Force 51 Heat 137 Laws of Motion 1 Light 100 Pressure 139 Thermodynamics 1

**Priyanka** · Accepted Answer · 2021-03-02T07:43:36Z

Here,

mass of iron m1 = 5kg

temp = 100°C

mass of water m2 = 10 kg

temp t2 =20°C

sp.heat of water S2= 4200 J/kg°C

sp. heat of iron S1= 470 J/kg°C

final temp T= ??

We know that,

\(T=\;\frac{m_1s_1t_1+m_{2\;}s_2t_2}{m_1s_1+\;m_2s_2}\)

T = 1075000 / 44350

T = 24.23 °C

An iron ball 5kg, 100°C is dipped in water 10 kg at 20°C. Find final temp ?