Question

Толык жануы кезiнде 23 × 10 Дж энергияны алу үшін, қанша мөлшердегі бензинді жағу керек? бензиндін меншікті жану жылуы 46 МДж/кг.​

Answer 1

Ответ: 0,5кг

Объяснение:

Дано:

Q=23*10⁶Дж=23МДж

q=46МДж/кг

--------------------

m-?

m=Q/q=23/46=0,5кг

Answer 2

Calculation of Energy Required to Obtain 23 × 10^10 J

To calculate the amount of gasoline required to obtain 23 × 10^10 J of energy, we need to know the energy content of gasoline. According to the provided information, the energy content of gasoline is 46 MJ/kg.

To find the amount of gasoline required, we can use the formula:

Amount of gasoline (in kg) = Energy required (in J) / Energy content of gasoline (in J/kg)

Substituting the given values:

Amount of gasoline (in kg) = 23 × 10^10 J / 46 MJ/kg

Converting 46 MJ to J:

Amount of gasoline (in kg) = 23 × 10^10 J / (46 × 10^6 J/kg)

Simplifying:

Amount of gasoline (in kg) = 23 × 10^10 J / (46 × 10^6 J/kg) Amount of gasoline (in kg) = 23 × 10^10 J / (4.6 × 10^7 J/kg) Amount of gasoline (in kg) = 5 × 10^3 kg

Therefore, to obtain 23 × 10^10 J of energy, approximately 5,000 kg of gasoline would be required.

Please note that this calculation assumes 100% efficiency in converting the energy content of gasoline into the desired form of energy. In reality, there are various factors that can affect the actual efficiency of energy conversion.