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KATRIN_1 [288]
3 years ago
10

When placed in a 100 mL cube-shaped box, a substance fills the cube and has a volume of 100 mL. When placed in a 50 mL tube, tha

t same amount of substance fills the tube and thus has a 50 mL volume. What is the state of the substance?
Chemistry
1 answer:
Elza [17]3 years ago
7 0

The substance is a gas.

The substance takes <em>both the shape and the volume</em> of the container, so it must be a gas.


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Answer:

Q = 114349.5 J

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In this case, since this a problem in which we need to calculate the total heat of the described process, it turns out convenient to calculate it in three steps; the first one, associated to the heating of the liquid water from 40 °C to 100 °C, next the vaporization of liquid water to steam at constant 100 °C and finally the heating of steam from 100 °C to 115 °C. In such a way, we calculate each heat as shown below:

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Thus, the total energy turns out to be:

Q_T=11286J+101700J+1363.5J\\\\Q_T=114349.5J

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