Respuesta :

kenmyna
The  heat  required  to raise   the  temperature  of  the  cup  from  25 c   to  50  c  is  calculated  as  follows
Q (heat)  =   c   x  delta  T
c =  specific  heat  capacity  =  0.  820   j/c
  delta T  =  change   in temperature  (  50 c-  25  c  =  25c

=  0.820 j /c  x  25 c  =  20.5  j

Explanation:

Heat is equal to heat capacity multiplied by change in temperature.

Mathematically,        [tex]Q = C \times \Delta T[/tex]

where           C = heat capacity

                  [tex]\Delta T[/tex] = change in temperature

Therefore, calculate heat as follows.

                     [tex]Q = C \times \Delta T[/tex]

                                = [tex]0.820 j^{o}C \times (50.0 - 25.0)^{o}C[/tex]

                                 = 20.5 j

Thus, we can conclude that heat is required to raise the temperature of the cup is 20. 5 joules.