Question

Объем воздуха 60 м в кубе,удельная теплоемкость 1000/кг *градус С,плотность воздуха 1,29 кг/м в кубе.Какое количество теплоты необходимо,чтобы нагреть его на 22 градусах???Срочно надо

Answer 1

$Q=cm\delta t=c\rho V\delta t \\\\ Q=1000\cdot1.29\cdot60\cdot22=1702800(Dg)$
Ответ: 1702800Дж.

Answer 2

Calculating the Amount of Heat Required to Heat Air

To calculate the amount of heat required to heat the given volume of air, we can use the formula:

Q = mcΔT

Where: - Q = amount of heat required - m = mass of the air - c = specific heat capacity of air - ΔT = change in temperature

Given: - Volume of air = 60 m^3 - Specific heat capacity of air = 1000 J/(kg * °C) - Density of air = 1.29 kg/m^3 - Change in temperature = 22°C

First, we need to calculate the mass of the air using the density and volume:

m = density * volume

m = 1.29 kg/m^3 * 60 m^3

m = 77.4 kg

Now, we can calculate the amount of heat required:

Q = 77.4 kg * 1000 J/(kg * °C) * 22°C

Q = 1,702,800 J

So, the amount of heat required to heat the given volume of air by 22°C is approximately 1,702,800 Joules.