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Usimov [2.4K]
3 years ago
5

Brainiest plsss helpp

Chemistry
2 answers:
ddd [48]3 years ago
6 0

Answer:

A) 19230 kg/ m3

Explanation:

divided it's mass by its volume ti get it's density

500/0.026 = 19230

svlad2 [7]3 years ago
3 0

Answer:

\boxed {\boxed {\sf  A. \ 19,320 \ kg/m^3}}

Explanation:

We want to find the density. The formula is mass over volume.

\rho = \frac{m}{v}

The mass is 500 kilograms. The volume is 0.026 cubic meters.

m= 500 \ kg \\v=0.026 \ m^3

Substitute the values into the formula.

\rho= \frac{ 500 \ kg}{ 0.026 \ m^3}

Divide.

\rho = 19230.7692 \ kg/m^3

This is just about equal to 19,320 kg/m³, so choice A is correct.

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A mole of X reacts at a constant pressure of 43.0 atm via the reaction X(g)+4Y(g)→2Z(g), ΔH∘=−75.0 kJ Before the reaction, the v
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The total energy change, ΔE, in kilojoules = -61.93 kJ

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Relationship between ΔH, ΔE and work done is given by first law of thermodynamics.

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ΔE = Change in internal energy

PΔV = Work done

Given that,

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ΔV = Final volume - initial volume

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