Your house foundation and basement floor are made up of1000ft 3 of concrete. Abo

Question

Your house foundation and basement floor are made up of1000ft3 of concrete. About how many Btu arerequired to raise the temperature of this mass from 0degrees C to40 degrees C? Given 22 Btu/ft3 for concrete. Multiple Choice a)1,600,000 b)900,000 c)22,000 d)40,000 e)1,800 f)40 Show how you got this answer. Your house foundation and basement floor are made up of1000ft3 of concrete. About how many Btu arerequired to raise the temperature of this mass from 0degrees C to40 degrees C? Given 22 Btu/ft3 for concrete. Multiple Choice a)1,600,000 b)900,000 c)22,000 d)40,000 e)1,800 f)40 Show how you got this answer.

Explanation / Answer

given for concrete specific heat is 22 Btu/ft3 perdegree hence we have the heat required to raise the temperature by 40degrees as 22 *1000*40=880000Btu hence option b is apt

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