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kramer
3 years ago
9

Determine whether each of the following is exothermic or endothermic and indicate the sign of δh. A. Natural gas burning on a st

ove b. Isopropyl alcohol evaporating from skin c. Water condensing from steam
Physics
1 answer:
Oxana [17]3 years ago
5 0

Answer:

A) exothermic, δh is negative

B) endothermic, δh is positive

C) endothermic, δh is positive

Explanation:

And endothermic process absorbs heat from its sorrounding, cooling the sorrounding down. Whereas an exothermic process releases heat to its sorrounding raising the temperature of the sorrounding system.

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Answer:

Shown by explanation;

Explanation:

The heat of the sample = mass ×specific heat capacity of the sample × temperature change(∆T)

Assumption;I assume the mass of the samples are : 109g and 192g

∆T= 30.1-21=8.9°c.

The heat of the samples are for 109g are:

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For 0.192g are;

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0.192 × 4186×36.9=29656.97J

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Because it's literally impossible to tell exactly where something that size is
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I know it sounds weird.  But that's the way it is.  Sorry.


8 0
3 years ago
Solve for x. 4(x+1)≤4x+3
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4x + 4 < 4x + 3 (expand it)
4 < 3 (cancel 4x on both sides)
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Answer:

its d on edge c:

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