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27 July, 08:33

If hydrogen temperature goes from 50 tp 75 degrees Celsius in 22g sample, how much heat was used? Give explanation!

A. 15,730 J

B. 23,595 J

C. 7865 J

D. 550 J

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Answers (1)
  1. 27 July, 09:01
    0
    The heat used if the hydrogen temperature goes from 50 to 75 c is calculated using

    Q (heat) = M (mass) xC (specific heat capacity for hydrogen) x deltaT (change in temperature) formula

    Q=?

    m = 22g

    c = 14.3 j/g/c

    delta T = 75-50 = 25c

    Q = 22 g x 14.3 j/g/c x 25 = 7865 j (answer c)
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