How do you calculate the amount of heat needed to increase the temperature of 250g of water from 20 C to 56 C? #C_g = 4.8 J/(C-g)#

1 Answer
Dec 26, 2017

Answer:

#=43.2kJ#

Explanation:

  1. Given the data, the formula to use is
    #Q=mCpDeltaT#
    where:
    #m=250g#
    #DeltaT=T_2-T_1=56-20=36^oC#
    #Cp=(4.8J)/(g*C)#
  2. This case, just plug in given data to find the heat needed to raise the temperature of the water as provided in the problem.
    #Q=(250cancel(g))((4.8J)/cancel((g*C)))(36^cancel(oC))#
    #Q=43200J#
    #Q=43.2kJ#