Answer:
Explanation:
mole of O₂ = ![\frac{8}{32}](https://tex.z-dn.net/?f=%5Cfrac%7B8%7D%7B32%7D)
= .25 moles
mole of CO₂
= ![\frac{8}{44}](https://tex.z-dn.net/?f=%5Cfrac%7B8%7D%7B44%7D)
= .1818 moles
moles of SO₂
![\frac{8}{64}](https://tex.z-dn.net/?f=%5Cfrac%7B8%7D%7B64%7D)
= .125 moles
Total moles of gas
= .5568 moles.
total volume of gas mixture
= 22.4 x .5568 liter ( volume of one mole of any gas = 22.4 liter)
= 12.47 liter.
gas will exert partial pressure according to their mole fraction
gas having greatest no of moles in the total mole will have greatest mole fraction so
O₂ will have greatest partial pressure.
It will stay at a constant temperature while it is boiling which is 212°F
Answer : The metal used was iron (the specific heat capacity is
).
Explanation :
In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.
![q_1=-q_2](https://tex.z-dn.net/?f=q_1%3D-q_2)
![m_1\times c_1\times (T_f-T_1)=-m_2\times c_2\times (T_f-T_2)](https://tex.z-dn.net/?f=m_1%5Ctimes%20c_1%5Ctimes%20%28T_f-T_1%29%3D-m_2%5Ctimes%20c_2%5Ctimes%20%28T_f-T_2%29)
where,
= specific heat of unknown metal = ?
= specific heat of water = ![4.184J/g^oC](https://tex.z-dn.net/?f=4.184J%2Fg%5EoC)
= mass of unknown metal = 150 g
= mass of water = 200 g
= final temperature of water = ![34.3^oC](https://tex.z-dn.net/?f=34.3%5EoC)
= initial temperature of unknown metal = ![150.0^oC](https://tex.z-dn.net/?f=150.0%5EoC)
= initial temperature of water = ![25.0^oC](https://tex.z-dn.net/?f=25.0%5EoC)
Now put all the given values in the above formula, we get
![150g\times c_1\times (34.3-150.0)^oC=-200g\times 4.184J/g^oC\times (34.3-25.0)^oC](https://tex.z-dn.net/?f=150g%5Ctimes%20c_1%5Ctimes%20%2834.3-150.0%29%5EoC%3D-200g%5Ctimes%204.184J%2Fg%5EoC%5Ctimes%20%2834.3-25.0%29%5EoC)
![c_1=0.449J/g^oC](https://tex.z-dn.net/?f=c_1%3D0.449J%2Fg%5EoC)
Form the value of specific heat of unknown metal, we conclude that the metal used in this was iron (Fe).
Therefore, the metal used was iron (the specific heat capacity is
).
Answer:
C. It is the ratio of the concentrations of products to the
concentrations of reactants.
Explanation:
B. Fungi are heterotrophs and plants are autotrophs