Question

У калориметр налили 200 г води, температура якої становить 25 0 С і опустили металеву гирю масою 100 г, нагріту до 100 0 С. Температура води відвищилась до 30 0 С. За цими даними визначити питому теплоємність металу.

Answer 1

Ответ:

Фотон электромагнитного излучения имеет энергию 6,4*10(в -19) дж. определить частоту колебаний и длину волны в вакууме для этого излучения. является ли это излучение видимым?

Объяснение:

Answer 2

Calculating Specific Heat Capacity of Metal

To calculate the specific heat capacity of the metal, we can use the formula:

Q = mcΔT

Where: - Q is the heat absorbed by the water - m is the mass of the water - c is the specific heat capacity of water - ΔT is the change in temperature of the water

Given: - Mass of water, m(water) = 200 g - Initial temperature of water, T1 = 25°C - Final temperature of water, T2 = 30°C - Mass of the metal, m(metal) = 100 g - Initial temperature of the metal, T3 = 100°C

First, let's calculate the heat absorbed by the water using the formula:

Q = mcΔT

Where: - m is the mass of the water - c is the specific heat capacity of water - ΔT is the change in temperature of the water

Calculating Heat Absorbed by Water

Using the specific heat capacity of water, which is approximately 4.18 J/g°C [[1]], we can calculate the heat absorbed by the water.

Q(water) = m(water) * c(water) * ΔT(water)

ΔT(water) = T2 - T1

Substitute the values: - m(water) = 200 g - c(water) = 4.18 J/g°C - ΔT(water) = 30°C - 25°C

Now, calculate Q(water).

Calculating Heat Released by the Metal

The heat released by the metal can be calculated using the formula:

Q(metal) = mcΔT

Where: - m is the mass of the metal - c is the specific heat capacity of the metal - ΔT is the change in temperature of the metal

Since the metal releases heat, the value of Q(metal) will be negative.

Calculating Specific Heat Capacity of the Metal

The specific heat capacity of the metal can be calculated using the formula:

c(metal) = -Q(metal) / (m(metal) * ΔT(metal))

Substitute the calculated values to find the specific heat capacity of the metal.

By following these calculations, you can determine the specific heat capacity of the metal based on the given data.