Questions
A student takes 50gm wax (specific heat = 0.6 kcal/kgoC) and heats it till it boils. The graph between temperature and time is as follows. Heat supplied to the wax per minute and boiling point are, respectively
detailed solution
Correct option is C
Since specific heat =0.6kcal/gm×∘C =0.6cal/gm×∘CFrom graph it is clear that in a minute, the temperature is raised from 0∘C to 50∘C. ⇒ Heat required for a minute =50×0.6×50=1500calAlso from graph, Boiling point of wax is 200oC.Talk to our academic expert!
Similar Questions
Liquid oxygen at 50 K is heated to 300 K at constant pressure of 1 atmosphere. The rate of heating is constant. Which of the graphs shown in Fig. represent the variation of temperature (T) with time (t)?
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