Answer:
final temperature of the cube
initial temperature of the cube
mass of the cube
specific heat of aluminum
Explanation:
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Force of friction is magnetic force
Answer:
Explanation:
Hello,
In this case, we use the Avogadro's number to compute the molecules of C2F4 whose molar mass is 100 g/mol contained in a 485-kg sample as shown below:
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Fe 3+ + SCN- --> FeSCN 2+
<span>.......Fe 3+ .......SCN-.........FeSCN 2+ </span>
<span>I.......0.04..........0.001.............. </span>
<span>C........-x...............-x............. </span>
<span>E.....0.04-x.....0.001-x...........x </span>
<span>Keq = 203.4 = x / (0.04-x)(0.001-x) </span>
<span>203.4 = x / (x^2 - 0.041x + 4x10^-5) </span>
<span>203.4x^2 - 8.34x + 0.00094 = x </span>
<span>203.4x^2 - 9.34x + 0.00094 = 0 </span>
<span>x = -0.0001M or 0.0458M </span>
<span>so, using your Keq, there would be no SCN- or Fe 3+ left.....all would be in the form of FeSCN 2+</span>
For this item, the <span>∆t will be the value of temperature difference that the substances will experience once subjected to same amount of heat. The heat is equal to,
H = mcp</span><span>∆t
where H is heat, m is mass, cp is specific heat, and </span><span>∆t is temperature difference.
The compounds given, despite having the almost the same molecular weight, will have different </span><span>∆t because of the different intermolecular forces present especially in the alkyl groups present. </span>