Answer:
A. There was still 140 ml of volume available for the reaction
Explanation:
According to Avogadro's law, we have that equal volumes of all gases contains equal number of molecules
According to the ideal gas law, we have;
The pressure exerted by a gas, P = n·R·T/V
Where;
n = The number of moles
T = The temperature of the gas
R = The universal gas constant
V = The volume of the gas
Therefore, given that the volumes and number of moles of the removed air and added HCl are the same, the pressure and therefore, the volume available for the reaction will remain the same
There will still be the same volume available for the reaction.
A. to remove dead organisms
Explanation:
The role of the fungus is to remove dead organisms from the ecosystem.
Decomposers plays very important role in the ecosystem.
- They allow for the continuous cycling of materials there in.
- Fungus and other micro-organisms are decomposers.
- They take up the remains of other plant and animal matter and breaks them down.
- this releases nutrients back to the soil and useful gases to the atmosphere.
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Answer:
540
Explanation:
i added them and then the result is out
The delta H of -484 kJ is the heat given off when 2 moles of H2 react with 1 mole of O2 to make 2 moles of H2O. You don't have anywhere near that much reactants, only 1/4 as much
<span>actual delta H = 0.34 moles H2 x (-484 kJ / 2 moles H2) = 823 kJ </span>
<span>delta E = delta H - PdeltaV = 823 kJ - 0.41 kJ = 822 kJ</span>
We shall consider V, the volume and T, the temperature.
According to Boyle's Laws:
In our case:
