question_answer

A sample of 0.1 g of water at \[\text{100 }\!\!{}^\circ\!\!\text{ C}\] and normal pressure \[\text{(1}\text{.013 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{5}}}\text{N}{{\text{m}}^{\text{--2}}}\text{)}\] requires 54 cal of heat energy to convert to steam at\[\text{100 }\!\!{}^\circ\!\!\text{ C}\]. If the volume of the steam produced is 167.1 cc, the change in internal energy of the sample, is [NEET - 2018]

A)  42.2 J            

B)  208.7 J

C)  104.3 J                      

D)  84.5 J