Water of volume 2 litre in a container is heated with a coil of 1 kW a – McqOptions

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1.	Water of volume 2 litre in a container is heated with a coil of 1 kW at 27 oC. The lid of the container is open and energy dissipates at rate of 160 J/s. In how much time temperature will rise from 27oC to 77oC [Given specific heat of water is 4.2 kJ/kg] [IIT-JEE (Screening) 2005]
A.	8 min 20 s
B.	6 min 2 s
C.	7 min
D.	14 min
Answer» B. 6 min 2 s

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