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3 years ago

By what factor does the gas temperature change if the volume is doubled and the pressure is tripled?

Chemistry

1 answer:

Bas_tet [7]3 years ago

8 0

Answer:

If the volume is doubled and the pressure is tripled, the temperature changes by a factor of 6.

Explanation:

Since, for ideal gases the temperature is in direct relation to the volume and the pressure, you can predict that if the volume is doubled and the pressure is tripled the effect on the temperature will be 3 × 2 = 6 times.

You can prove it using the combined law of gases:

P₁ V₁ /T₁ = P₂ V₂ / T₂

Where the letters P denote absolute pressures, the letters T denote temperature measured in absolute scale, and the letters V denote volume.

The changes given may be written it this way:

V₂ = 2 × V₁ = 2V₁

P₂ = 3 × P₁ = 3P₁

Then, you can write T₂ in terms of the other variables:

T₂ = (P₂ V₂ T₂) / (P₁ V₁) = 3P₁ 2V₁ T₂ / (P₁V₁)

Cancel the common factors P₁ and V₁

T₂ = 6 T₁

Which proves that the final temperature is 6 times the initial temperature.

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Like Father Like Mother What is the best summary of this oassage

vovangra [49]

Answer:

hope this helps <3

Explanation:

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3 years ago

Select the statements below that are false and think about why they are not true.

Anna007 [38]

Answer:

a) and d) are false.

Explanation:

a) The second law of thermodynamics states that the entropy of the universe increases in a spon taneous process and remains unchanged in an equilibrium process.

For a spontaneous process:

ΔSuniv = ΔSsys + ΔSsurr > 0

For a spontaneous process, the second law says that ΔSuniv must be greater than zero, but it does not place a restriction on either ΔSsys or ΔSsurr. Thus, it is possible for either ΔSsys or ΔSsurr to be negative, as long as the sum of these two quantities is greater than zero.

d) A reaction that does occur under the given set of conditions is called a spontaneous reaction. We observe spontaneous physical and chemical processes every day, including many of the following examples:

• A waterfall runs downhill, but never up, spontaneously.

• A lump of sugar spontaneously dissolves in a cup of coffee, but dissolved sugar does not spontaneously reappear in its original form.

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3 years ago

Recall that you're hypothesis is that these values are the fractions of atoms that are still radioactive after n half life cycle

Sergeu [11.5K]

A= 0.5, B = 0.25 , C = 0.125, D = 0.015625 and E = 0.00390625

<h3>What is a hypothesis?</h3>

A research hypothesis is a statement of expectation or prediction that will be tested by research. Before formulating your research hypothesis, read about the topic of interest to you.

Half life of a substance is defined as the amount of time taken by the substance to reduce to half of its original amount.

Here n represents the number of half lives.

The amount of substance that remains after n half lives can be calculated using the given formula,

So when we have n =1,

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Therefore we have A = 0.5

When n = 2, we have 0.5² = 0.25

So when 2 half lives are over, the amount of substance that remains is 0.25 times that of original

Therefore B = 0.25

When n = 3, we have 0.5³ = 0.125

So when 3 half lives are over, the amount of substance that remains is 0.125 times that of original.

Therefore we have C = 0.125

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So D = 0.015625

When n = 8, we have 0.5⁸ = 0.00390625

Therefore E = 0.00390625

The values for A, B, C, D and E are 0.5, 0.25, 0.125, 0.015625 and 0.00390625 respectively.

Learn more about the hypothesis here:

brainly.com/question/17173491

#SPJ1

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