Answer : The initial temperature of water (in ) =
Solution : Given,
Mass of gold = 15.23 g
Mass of water = 28 g
Initial temperature of gold =
Final temperature of gold =
Final temperature of water =
Heat capacity of gold =
Heat capacity of water =
The formula used for calorimetry is,
q = m × c × ΔT
where,
q = heat required
m = mass of an element
c = heat capacity
ΔT = change in temperature
In the calorimetry, the energy as heat lost by the system is equal to the gained by the surroundings.
Now the above formula converted and we get
Now put all the given values in this formula, we get
By rearranging the terms, we get
Thus the initial temperature of water =
Answer: 1.99 mol h20
Explanation:
you have 36.030 g, trying to get it into mols
to get from g to mols, use the molar mass (periodic table)
36.030 g h20 (1 mol/18.02g) = 1.99 mol h20
The form of energy used in cooking is thermal energy, or heat. There is a variety of chemical reactions that can take place during cooking and baking.
It can uplift slowly due to the pressure of Earth’s plates.
It can melt into magma and recrystallize as extrusive igneous rock.