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igomit [66]
3 years ago
12

Suppose that there is an air sample and a water sample, each of the same mass and each with an initial temperature, Tinitial, of

0° C. Now, imagine that both the air and water are heated using sunlight. If the same total amount of energy is added to both samples, which sample will reach a higher temperature, Tfinal? The air or the water?
Chemistry
2 answers:
Svetlanka [38]3 years ago
7 0

Answer:

The air will reach a higher final temperature because its specific heat is lower.

Explanation: right from PLATO so paraphrase a lil bit

klasskru [66]3 years ago
6 0

Answer:

The air will reach a higher final temperature because its specific heat is lower.

Explanation:

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How many atoms are found in 12.0 grams of Helium?
Allisa [31]
<span>Each mole contains Avagodro's number of atoms i.e. 6.023x10^23, so

3 moles x 6.023x10^23 atoms/mole = 18.069x10^23 atoms = 1.8x19^24 atoms </span>
3 0
3 years ago
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What is the molarity of a solution in which 25.3 grams of potassium bromide is dissolved in 150. mL of solution?
irga5000 [103]

Answer:

~1.417M

Explanation:

Molarity=(number of moles of solute)/(litres of solution)

In this case, we need to find moles of potassium bromide.

Mass=25.3g

Molar mass= 119g/mol

moles=(mass/molar mass)

        =(25.3)/(119)

        =0.2126moles of potassium bromide

Molarity=(0.2126)/(150/1000)

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Hope this helps:)

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3 years ago
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For the reaction 2A(g) â B(g), the equilibrium constant is Kp = 0.76. A reaction mixture initially contains 4.0 atm of gas (PA =
timofeeve [1]

Answer: (a) The reaction mixture will proceed toward products.

Explanation:

Equilibrium constant is defined as the ratio of pressure of products to the pressure of reactants each raised to the power their stoichiometric ratios. It is expressed as K_p

K is the constant of a certain reaction when it is in equilibrium, while Q is the quotient of activities of products and reactants at any stage other than equilibrium of a reaction.

For the given chemical reaction:

2A(g)\rightleftharpoons B(g)

The expression for Q_p is written as:

Q_p=\frac{p_B}{(p_A)^2}

Q_p=\frac{(2.0)}{(2.0)^2}

Q_p=0.5

K_p=0.76

Thus as K_p>Q_p , the reaction will shift towards the right i.e. towards the product side.

7 0
3 years ago
When a fuel burns, what determines whether co or co^2 will be produced?
Galina-37 [17]
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EX:
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3 years ago
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adell [148]

Answer:

FADH2 is a reducing agent.

FAD is an oxidizing agent.

Explanation:

The full form of FAD is flavin adenine dinucleotide. It is mainly a redox-active coenzyme which is associated with the different proteins and is involved with the enzymatic reactions in the metabolism.

FAD is obtained by donating or accepting electrons.

In the citric acid cycle,

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Thus we see that FAD is an oxidizing agent while $FADH_2$ is a reducing agent.      

8 0
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