Calculate the volume occupied by 25.2 g of co2 at 0.84 atm and 25°c. r = 0.08206 latm/kmol.
1 answer:
Answer:
16.68 L
Explanation:
First of all, we need to calculate the number of moles corresponding to 25.2 g of CO2.
The molar mass of CO2 is 44.01 g/mol, therefore the number of moles is:
So now we can use the ideal gas equation:
where:
p = 0.84 atm is the gas pressure
V = ? is the volume
n = 0.573 mol is the number of moles
R = 0.08206 L atm / K mol is the gas constant
T = 25°c = 298 K is the gas temperature
Substituting into the equation and re-arranging it, we find the volume:
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Answer:
Show attached picture
Explanation:
Let's call V the voltage provided by the battery in the circuit. M is the multimeter (let's call its internal resistance) and R indicates the resistance of the light bulb.
We know that the meter's internal resistance is 1000 times higher than the bulb's resistance:
(1)
Both the meter and the bulb are connected in parallel to the battery, so they both have same potential difference at their terminals:
Using Ohm's law, , we can rewrite the previous equation as:
where
is the current in the meter
is the current in the bulb
Using (1), this equation becomes
so, the current in the meter is 1000 times less than through the bulb.
Answer:
Magnetic field at the center of the loop
Explanation:
It is given that total length of wire is 2 m and number of circular loop is 5 turns.
Therefore ,
We know , magnetic field at the center of loop is given by :
Putting all values in above equation we get :
Hence , this is the required solution.