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just olya [345]
3 years ago
8

Why does a hot water bottle feel warm? Options: Molecules in the hot water bottle are moving faster than molecules in the skin.

Molecules in the skin are moving faster than molecules in the hot water bottle.
Chemistry
2 answers:
marissa [1.9K]3 years ago
7 0

Answer:

Molecules in the hot water bottle are moving faster than the molecules of the skin.

Explanation:

When an object is heated, the molecules of that object move much faster than the room temperature object or a cold object. When the molecules move faster, the friction causes heat.

vova2212 [387]3 years ago
5 0

Answer:

the answer is none of the above the answer is that if w should pour the hot water in a bottle the heat will make molecules combine together that is what brought about heat

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What is the mass of a sample of alcohol (specific heat = 2.4 J/gC), if it requires 4780 J of heat to raise the temperature by 5.
insens350 [35]

The mass of a sample of alcohol is found to be = m = 367 g

Hence, it is found out that by raising the temperature of the given product, the mass of alcohol would be 367 g.

Explanation:

The Energy of the sample given is q = 4780

We are required to find the mass of alcohol m = ?

Given that,

The specific heat given is represented by = c = 2.4 J/gC

The temperature given is ΔT = 5.43° C

The mass of sample of alcohol can be found as follows,

The formula is c = \frac{q}{mt}

We can drive value of m bu shifting m on the left hand side,

m = \frac{q}{ct}

mass of alcohol (m) = \frac{4780}{(2.4)( 5.43)}

m = 367 g

Therefore, The mass of the given sample of alcohol is

m = 367g

It requires 4780 J of heat to raise the temperature by 5.43 C in the process which yields a mass of 367 g of alcohol.

4 0
3 years ago
5. Why do water droplets form on the outside of a glass of cold soda?
ale4655 [162]
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How many grams of mercury are needed to react completely with 157g of sulfur to form hgs?
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<span>To solve this we need to balance the equations first.
 So Hg + S --> HgS is balanced
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So 4.90 moles of S reacts with 4.90 moles of Hg.
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Answer:

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Thus, the correct answer is information extortion.

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