Question

Сколько энергии в кДж выделится при сжигание 50кг мазута с теплотой сгорание 42 МДж/кг?

Answer 1

Дано:
m= 50 кг
q= 42000000 Дж/кг

Решение:
Q= qm
Q= 42000000 Дж/кг*50 кг= 2 100 000 000 Дж= 2100000 кДж

Ответ: 2100000 кДж.

Answer 2

Calculating Energy Released from Burning Mazut

To calculate the energy released from burning 50 kg of mazut with a heat of combustion of 42 MJ/kg, we can use the formula:

Q = qm

Where: - Q represents the energy released - q represents the heat of combustion - m represents the mass of the substance

Plugging in the values: - q = 42 MJ/kg - m = 50 kg

We can calculate the energy released using the formula: Q = qm

Q = 42 MJ/kg * 50 kg

Q = 2100 MJ

So, the energy released from burning 50 kg of mazut with a heat of combustion of 42 MJ/kg is 2100 MJ.