A) 15 days
B) 20 days
C) 32 days
D) 40 days
Correct Answer: C
Solution :
\[Calorific\text{ }value\text{ }of\text{ }butane=\frac{\Delta {{H}_{c}}}{molecular\text{ }wt.}\] \[=\frac{2658}{58}=45.8\,kJ/g\] Cylinder consist 14 kg of butane means 14000 g of butane \[\because \] 1 g gives = 45.8 kJ \[\therefore \]14000 g gives\[=14000\times 45.8=641200\text{ }kJ\] Family needs 20,000 kJ/day So, gas fulfill the requirement for\[\frac{641200}{20,000}=32.06\,days\]You need to login to perform this action.
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