A tank with a capacity of 5 liters is filled with gasoline. Is this amount of gasoline enough to get

A tank with a capacity of 5 liters is filled with gasoline. Is this amount of gasoline enough to get 23 * 10 ^ 7 J of energy when it burns?

Data: V (tank capacity, volume of gasoline taken) = 5 liters (5 * 10 ^ -3 m3); Q (thermal energy, which must be obtained due to the combustion of taken gasoline) = 23 * 10 ^ 7 J.

Reference values: ρb (gasoline density) = 710 kg / m3; q (specific heat of combustion of gasoline) = 4.6 * 10 ^ 7 J / kg.

The actual amount of thermal energy due to the combustion of gasoline is determined by the formula: Qf = q * m = q * ρb * V.

Calculation: Qf = 4.6 * 10 ^ 7 * 710 * 5 * 10 ^ -3 = 16.33 * 10 ^ 7 J <23 * 10 ^ 7 J.

Answer: There is not enough gasoline.



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