Questions
In electrical calorimeter experiment, voltage across the heater is and current is . Heater is switched on for . Room temperature is and final temperature of calorimeter and unknown liquid is . Mass of empty calorimeter is and combined mass of calorimeter and unknown liquid is . Find the specific heat capacity of the unknown liquid in proper significant figures. Specific heat of calorimeter =
detailed solution
Correct option is B
Given, V=100.0 V, i=10.0 A, t=700.0 s, θ0=10.0°C, θf=73.0°C,m1=1.0 kg and m2=3.0 kgSubstituting the values in the expression,Sl=1m2-m1Vitθf-θ0-m1ScSl=13.0-1.0(100.0)(10.0)(700.0)73.0-10.0-(1.0)3.0×103=4.1×103 J/kg°CSimilar Questions
The mass, specific heat capacity and the temperature of a solid are , and respectively. The mass of the liquid and the calorimeter are and . Initially, both are at room temperature . Both calorimeter and the solid are made of same material. In the steady state, temperature of mixture is , then find the specific heat capacity of the unknown liquid.
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