Answer:
In the kinetic theory the particles in a gas behavior are constant and in linear motion
Explanation:
Convert between the chemical formula of an ionic compound and its name ... When naming ionic compounds, the cation retains the same name as the element.
From ideal gas equation, that is PV =nRT
P=nRT/V
n is the number of moles
the molar mass of CH4 =12+4=16
R is the gas contant (0.0821 atm/mol/k)
n= 6.022/16=0.376 moles
P={(0.376 moles x 0.0821 atm/mol/k x 402k) /30.0L} =0.414 atm
Answer:
The 150 g Al will reach a higher temperature.
Explanation:
- The amount of heat added to a substance (Q) can be calculated from the relation:
Q = m.c.ΔT.
where, Q is the amount of heat added,
m is the mass of the substance,
c is the specific heat of the substance,
ΔT is the temperature difference (final T - initial T).
<em>Since, Q and c is constant, ΔT will depend only on the mass of the substance (m).</em>
∵ ΔT is inversely proportional to the mass of the substance.
∴ The piece with the lowest mass (150.0 g) will reach a higher temperature than that of a higher mass (250.0 g).
<em>So, the right choice is</em>: The 150 g Al will reach a higher temperature.
First, let's state the chemical reaction:
We can find the number of moles of Cl2 required to produce 0.0923 moles of AlCl3, doing a rule of three: 3 moles of Cl2 reacted produces 2 moles of AlCl3:
The calculation would be:
And the final step is to convert this number of moles to grams. Remember that the molar mass can be calculated using the periodic table, so the molar mass of Cl2 is 70.8 g/mol, and the conversion is:
The answer is that we need 9.770 grams of Cl2 to produce 0.0923 moles of AlCl3.
