In the presence of excess oxygen, methane gas burns in a constant-pressure system to yield carbon dioxide and water: CH4 (g) + 2
1 answer:
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Answer:
r² x h
Explanation:
A can is cylindrical in nature. Using the formula of the volume of the can, we can find this unknown volume.
The volume of cylinder is given as:
Volume of a cylinder = Area x height
Volume of a cylinder = r² x h
Therefore density of the can;
Density =
Answer:
a) 26.65 kJ was the heat evolved by the reaction.
b) is the energy released on burning 1 metric ton of this type of coal
Explanation:
Heat capacity of the calorimeter = C = 20.5 kJ/°C
Initial temperature of the calorimeter, = 22.50°C
Final temperature of the calorimeter, = 23.80°C
The heat evolved by the reaction = Q
26.65 kJ was the heat evolved by the reaction.
0.875 g sample of anthracite coal was burned in a bomb calorimeter
0.875 g sample of anthracite coal gives 26.65 kJ of heat.
1 metric ton= 1000 kg
1000 kg = 1000 × 1000 g = 1,000,000 (1 kg =1000 g)
Then burning 1,000,000 g coal will give:
is the energy released on burning 1 metric ton of this type of coal