Which of the following is not an indication of a chemical change? A.fracture formation. B.energy transfer. C.precipitate formati
2 answers:
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To the picture I will be attaching, the intervals in which the potential energy decrease and the average kinetic energy will remain constant is on the interval or DE and BC, so the answer in this is the interval in which DE and BC is at constant because they are still straight line.
Answer:
1711.11L
Explanation:
Given parameters:
Mass of methane = 1kg = 1000
Temperature of gas = 35°C
Pressure of the gas = 0.9atm
Converting to the temperature to kelvin, we have:
35+ 273 = 308k
Solution
From the given parameters, we can solve this problem using the ideal gas equation which is combination of the gas laws. It is expressed below:
PV = nRT .......................(i)
Where P is the pressure of the gas
V is the volume of the gas
n is the number of moles
R is the gas constant
T is the temperature
Now, from the above parameters, we have two unknowns which are n and V.
To find the number of moles n, we use the expression below:
number of moles =
molar mass of methane = 12 + (4x1) = 16g/mol
Number of moels of methane = = 62.5mole
Now that we know the number of moles, we can make the unknown Volume the subject of the formula:
V =
V = = 1711.11L