A cup of water is heated with a heating coil that delivers 32.15W of heat. In...
A cup of water is heated with a heating coil that delivers 32.15W of heat. In 14.23 minute, the temperature of the water rises by 14.22 oC. What is the mass of the water? answer please
Homework Answers
given
P = 32.15 W
t = 14.23 min
dT = 14.220 C
we have Q = P X t
Q = 32.15 X 14.23 X 60
Q = 27449.67 J
then
using equation to find the mass of the water m is
Q = m C dT
27449.67 = m X 4180 X 14.22
m = 27449.67 / 4180 X 14.22
m = 27449.67 / 59439.6
m = 0.4618 kg
the mass of the water is m = 0.4618 kg
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