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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

Respuesta :

kenmyna
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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