3 years ago

Jack tries to place magnets on his refrigerator at home, but they won’t stick. What could be the reason?

1 answer:

5 0

Answer:

The reason might be that the material that the fridge is made out of is not magnetic, meaning that it's not attracted to metal.

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The internal energy : 1310.43 kJ/mol

<h3>Further explanation</h3>

Internal energy (ΔE) can be formulated for Calorimeter :

$\tt \Delta E=C\times.\Delta t$

C= the heat capacity of the calorimeter

Δt=36.2-25.68=10.52°C

$\tt \Delta E=5.73 kJ/^oC\times 10.52^oC=60.2796~kJ$

mol butane(MW=58,12 g/mol)

$\tt \dfrac{2.67}{58,12 }=0.046$

the internal energy (ΔE) in KJ/mol

$\tt \dfrac{60.2796}{0.046}=1310.43~kJ/mol$

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Upon a constant pressure (P), volume (V) of a gas will vary in direct proportion to changes in temperature (T). So V1/T1 = V2/T2
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