If liquefied oxygen at 1 atmospheric pressure is heated from 50K to 300k by supplying heat at constant rate. The graph of temperature vs time will beA. B. C. D.

If liquefied oxygen at 1 atmospheric pressure is heated from 50K to 30

1.	If liquefied oxygen at 1 atmospheric pressure is heated from 50K to 300k by supplying heat at constant rate. The graph of temperature vs time will beA. B. C. D.
Answer» Correct Answer - C (c) `Q=mcDeltaT` `rArrQ=mc(T-t_0)…..(i)` `:.` From 50K to boiling temperature, T increases linearly. During boiling, equation is `Q=mL` Temperature remains constant till boiling is complete After that, again eqn. (i) is followed and temperature increases linearly.

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If liquefied oxygen at 1 atmospheric pressure is heated from 50K to 300k by supplying heat at constant rate. The graph of temperature vs time will beA. B. C. D.

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