Question

Calculate the mass of a steel plate with a specific heat capacity of 650 J/kg °C, taking into

consideration the steel plate was heated up with a cutting torch while cutting to 925 °C, and was

quenched in 25 It of water with an initial temperature of 22 °C and a specific heat capacity of

3850 J/kg °C. Both the water and the steel plate reached a final temperature of 32 °C. Here we

assume that there was no heat loss. Indicate what info was given, show all formulas and steps.

Answer 1

$Q_1=Q_2,$

$c_1m_1(925-32)=c_2m_2(32-22),$

$m_1=1.66~kg.$