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
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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.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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