Answer:
357.475
Explanation:
First you need periodic table and you have to look for mass
Fe = 3 x 55.845 = 167.535
P = 2 x 30.97 = 61.94
o = 4 x 2 so 8 oxygen = 8 x 16 = 128
add all and you get 357.475
Answer:
Phase C - Liquid State
Phase E - Gaseous State
Explanation:
Usually, in phases of water, we have the following;
When temperature is less than zero, it is said to be in its solid phase as ice.
When temperature is between 0 to 100, we can say it is in the liquid phase as water.
When temperature is above 100°C, It is said to be in the gaseous phase as vapour.
From the diagram;
Phase C is the only liquid state because it falls between temperature of 0°C and 100°
Also, only phase E is in the gaseous phase because the temperature is above 100°C.
Answer:
B.
Explanation:
bc it goes from having the potential to move to moving sorry if im wrong tho
The heat capacity of this bomb calorimeter is 9.71 kJ/ °C
What is Heat Capacity?
- A physical feature of matter known as heat capacity or thermal capacity is the quantity of heat that must be applied to an object in order to cause a unit change in temperature.
- Heat capacity is measured in joules per kelvin (J/K), the SI unit.
- A broad property is heat capacity. The specific heat capacity, which can be calculated by dividing an object's heat capacity by its mass, is the comparable intense attribute.
- The molar heat capacity is obtained by dividing the heat capacity by the molecular weight of the substance.
- The heat capacity per volume is gauged by the volumetric heat capacity. The term "thermal mass" is frequently used in architecture and civil engineering to describe a building's ability to hold heat.
<u>solution:</u>
According to the data given in the question, we have
The heat of combustion for the acetone = -11.63 kJ/g (Here the negative sign depicts the release of heat and only magnitude is considered for the heat capacity)
The given mass of acetone = 2.53g
The change in temperature due to the combustion = Δt = 3.03 °C
Now, using formula for the heat capacity is given as:
Heat capacity (C) = 
or , C = 
or, C = 9.71 kJ/ °C
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