Question

Формула теплообмена, 8 класс.

Answer 1

Qотд=Qполуч
Q=L*m(кипение)
Q=q*m(сгорание)
Q=l\*m(плавление)
Q=c*m(t2-t1)

Answer 2

Formula for Heat Transfer, 8th Grade

In the context of 8th-grade heat transfer, the formula for heat transfer can be expressed in various ways, but one common formula is the equation for calculating heat transfer, which is given by:

Q = mcΔT.

Where: - Q represents the amount of heat transferred, - m is the mass of the substance, - c is the specific heat capacity of the substance, and - ΔT is the change in temperature.

This formula is used to calculate the amount of heat transferred when there is a change in temperature of a substance.

Another important concept related to heat transfer is the Stefan-Boltzmann law, which describes the power radiated from a black body in terms of its temperature. The law is expressed as:

I = σT^4.

Where: - I is the intensity of radiation, - σ is the Stefan-Boltzmann constant (5.67 x 10^-8 W/m^2K^4), and - T is the temperature in Kelvin.

This law is fundamental in understanding the radiation of heat from objects.

Conclusion

Understanding the formula for heat transfer and the principles of heat radiation is essential for comprehending the transfer of thermal energy, a fundamental concept in the study of heat and energy.