Question

Какое количество теплоты выделится при сгорании 3т торфа ответ дайте в мдж можно с решением пжж

Answer 1

Ответ:

4,2 *10*7

Объяснение:

Q=qm

Q=1,4*10*7*3000 =4,2*10*7

Answer 2

Calculating Heat Released from Burning 3 Tons of Peat

To calculate the amount of heat released from burning 3 tons of peat, we can use the calorific value of peat, which is the amount of heat produced by the complete combustion of a unit quantity of it. The calorific value of peat is approximately 15-25 MJ/kg.

Given that 1 ton is equal to 1000 kg, we can calculate the total heat released as follows:

1. Convert 3 tons to kilograms: - 3 tons = 3 * 1000 kg = 3000 kg

2. Calculate the heat released: - Using the lower and upper bounds of the calorific value of peat: - Lower bound: 15 MJ/kg - Upper bound: 25 MJ/kg

- Lower bound calculation: - Heat released = 3000 kg * 15 MJ/kg = 45,000 MJ

- Upper bound calculation: - Heat released = 3000 kg * 25 MJ/kg = 75,000 MJ

Therefore, the amount of heat released from burning 3 tons of peat ranges from 45,000 MJ to 75,000 MJ depending on the calorific value of the peat.

I hope this helps! If you have any more questions or need further assistance, feel free to ask.