Question #55370

1 Answer
Aslam S.
Jul 3, 2015

409.2 #Jkg^-1K^ -1# or 0.409#Jg^-1 C^-1#

Explanation:

Specific Heat Capacity is defined as amount of energy necessary to raise the temperature of a unit mass (kg) by one degree K i.e. in SI units #Jkg^-1K^-1#
As degree change in C and K are same dividing the SI unit by 1000 gives value in #Jg^-1 C^-1# 1 kg = 1,000 g
calculated by the formula #E=mc(T_2-T_1)# where E is the energy, m is the mass and #(T_2-T_1)#the change in temperature.

#89.8=13.3 xx c xx(37.2-20.7) c#
giving #c= 0.409 Jg^-1 C^-1#

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