The initial temperature of the copper piece if a 240.0 gram piece of copper is dropped into 400.0 grams of water at 24.0 °C is 345.5°C
<h3>How to calculate temperature?</h3>
The initial temperature of the copper metal can be calculated using the following formula on calorimetry:
Q = mc∆T
mc∆T (water) = - mc∆T (metal)
Where;
- m = mass
- c = specific heat capacity
- ∆T = change in temperature
According to this question, a 240.0 gram piece of copper is dropped into 400.0 grams of water at 24.0 °C. If the final temperature of water is 42.0 °C, the initial temperature of the copper is as follows:
400 × 4.18 × (42°C - 24°C) = 240 × 0.39 × (T - 24°C)
30,096 = 93.6T - 2246.4
93.6T = 32342.4
T = 345.5°C
Therefore, the initial temperature of the copper piece if a 240.0 gram piece of copper is dropped into 400.0 grams of water at 24.0 °C is 345.5°C.
Learn more about temperature at: brainly.com/question/15267055
Answer: D
Explanation: Expand this (OH)2 you will get 2O, 2H
Hence 1Ba, 2O, 2H
Answer:
hope it is use full to you
Explanation:
The gas constant is denoted by the symbol R or R. It is equivalent to the Boltzmann constant, but expressed in units of energy per temperature increment per mole, i.e. the pressure–volume product, rather than energy per temperature increment per particle.
it is a physical constant that is featured in many fundamental equations in the physical sciences, such as the ideal gas law, the Arrhenius equation, and the Nernst equation. As a consequence, the value of the gas constant is also exactly defined.
Driving water out of crystals are crystallization process.
The piece of equipment used are evaporating dish.
Explanation:
Crystallization process
- Crystallization is a process of converting crystalline solid state into liquid state.
- It works both in purification and separation step.
- Steps involved in the crystallization process are
a) Nucleation
b) Crystal growth
- It is the oldest unit operation methods.
- Methods involved in this process are solvent evaporation, slow cooling, solvent diffusion and sublimation.
Evaporating dish
- Evaporating dish is a shallow open container.
- Evaporating dish is used to heat and evaporate solids.
- It is made by borosilicate glass or porcelain, which is non-reactive and withstand heat from Bunsen burner.