Multiple Choice
A solar heated house loses about 5.5 × 107 cal through its outer surfaces on a typical 24-h winter day.What mass of storage rock is needed to provide this amount of heat if it is brought up to initial temperature of 58°C by the solar collectors and the house is maintained at 23°C? (Specific heat of rock is 0.21 cal/g⋅°C. )
A) 1.4E+3 kg
B) 7.5E+4 kg
C) 7.5E+3 kg
D) 7.5E+2 kg
E) 1.6E+3 kg
Correct Answer:
Verified
Correct Answer:
Verified
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