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NEET Sample Paper NEET Sample Test Paper-90

  • question_answer
    Steam at \[100{}^\circ C\] is passed into 1.1 kg of water contained in a calorimeter of water equivalent  0.02 kg at \[15{}^\circ C\] till the temperature of the calorimeter and its contents rises to \[80{}^\circ C.\] The mass of the steam condensed in kg is

    A) 0.130

    B)                    0.065

    C) 0260                

    D)         0.135

    Correct Answer: A

    Solution :

    [a] \[mL+m(100-80)\] \[=1.1\times 1\times (80-15)+0.02\times (80-15)\] \[m\times 540+20\,m=71.5+1.30\] \[560\,m=72.80\] \[\therefore \] \[m=0.130\]


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