Question

How many joules of heat are required to raise the temperature of 225 g of water from 42 degree celcius to 75 degree celcius?
q = mass H2O x specific heat H2O x (Tfinal-Tinitial)
Formula q=m*c*delT
data
m= 225gm
c= 1
delT= 75-42=33degree celcius

q=mct
=225*1.0*33
=7425 j

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