Problem

In electrical calorimeter experiment, voltage across the heater is 100.0 V and current is 10.0 A. Heater is switched on for

t = 700.0

s. Room temperature is

\theta_0 = 10.0^\circ\text{C}

and final temperature of calorimeter and unknown liquid is

\theta_f = 73.0^\circ\text{C}

. Mass of empty calorimeter is

m_1 = 1.0

kg and combined mass of calorimeter and unknown liquid is

m_2 = 3.0

kg. Find the specific heat capacity of the unknown liquid in proper significant figures. Specific heat of calorimeter =

3.0 \times 10^3 \text{ J/kg}^\circ\text{C}