Question

СРОЧНО ПОМОГИТЕ!!Брусок массой 500 г при температуре 18 °С опускают в кипяток массой 400 г. Из какого металла может быть сделан брусок, если температура в калориметре понизилась до 83 °С?

Answer 1

Решение на фото, успехов :)

Answer 2

Calculation of Heat Transfer

To determine the metal from which the block is made, we need to calculate the heat transfer that occurs when the block is submerged in boiling water. The heat transfer equation can be expressed as:

Q = mcΔT

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

In this case, the mass of the block is 500 g and the temperature change is from 18 °C to 83 °C. The mass of the boiling water is 400 g.

Calculation Steps

1. Calculate the heat transfer from the block to the water: - Q1 = m1 * c1 * ΔT1

2. Calculate the heat transfer from the water to the calorimeter: - Q2 = m2 * c2 * ΔT2

3. Since the heat transfer is conserved, we can equate Q1 and Q2: - Q1 = Q2

4. Rearrange the equation to solve for the specific heat capacity of the metal (c1): - c1 = (m2 * c2 * ΔT2) / (m1 * ΔT1)

Calculation Results

Using the given values, we can substitute them into the equation to find the specific heat capacity of the metal:

- m1 = 500 g (mass of the block) - c1 = ? (specific heat capacity of the metal) - ΔT1 = 83 °C - 18 °C = 65 °C (change in temperature of the block) - m2 = 400 g (mass of the boiling water) - c2 = ? (specific heat capacity of water) - ΔT2 = 100 °C - 83 °C = 17 °C (change in temperature of the water)

Now, we need to find the specific heat capacity of water (c2) and the specific heat capacity of the metal (c1) to complete the calculation.

Specific Heat Capacities

The specific heat capacity of water is approximately 4.18 J/g°C.

Unfortunately, the specific heat capacity of the metal is not provided in the question or the search results. Without this information, it is not possible to determine the metal from which the block is made.

Please provide the specific heat capacity of the metal, or any additional information, so that we can assist you further.