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Snowcat [4.5K]
4 years ago
6

Which of the following best defines molar heat capacity? Group of answer choices The quantity of heat required to raise the temp

erature of 1 gram of a substance by 1°C The quantity of heat required to lower the temperature of 1 liter of a substance by 1°C The quantity of heat required to raise the temperature of 1 mole of a substance by 1K The quantity of heat required to raise the temperature of 1 gram of a substance by 1°F
Chemistry
1 answer:
motikmotik4 years ago
8 0

Answer: The quantity of heat required to raise the temperature of 1 mole of a substance by 1K

Explanation:

As the temperature change is same in all scales of temperature.

The quantity of heat required to raise the temperature of a substance by one degree Celsius or one degree Kelvin or one degree Fahrenheit is called the heat capacity.

The quantity of heat required to raise the temperature of 1 gram of substance by one degree Celsius one degree Kelvin or one degree Fahrenheit is called as specific heat capacity.

The quantity of heat required to raise the temperature of 1 mole of substance by one degree Celsius or one degree Kelvin or one degree Fahrenheit is called as molar heat capacity.

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Answer the following questions for this equation: 2 H2 + O2 --> 2 H2O
laiz [17]

Answer:

                       1 Mole O₂ / 2 Mole H₂O

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                  The balance chemical equation for the synthesis of water is as follow,

                                             2 H₂ + O₂ → 2 H₂O

In this equation the moles are specified by the coefficients i.e.

2 moles of H₂ reacting with 1 mole of O₂

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1 mole of O₂ producing 2 moles of H₂O

Hence the molar ratio for O₂ and H₂O can be written as,

                            1 Mole O₂ : 2 Mole H₂O

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                           1 Mole O₂ / 2 Mole H₂O

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Which statment best describes the chamces that occured in the reactant in forming the alkene product
Ganezh [65]

Hello. You did not enter answer options. The options are:

a. The OH group was removed from the reactante

b. The OH group was replaced by an H atom.

c. Two atoms were removed from the reactant.

d. An H atom abd a OH group have been removed drom the reactant.

In addition, you forgot to add an image that complements the question. The image is attached below.

Answer:

d. An H atom abd a OH group have been removed drom the reactant

Explanation:

As you can see in the image, the reagent is an alcohol molecule. For the transformation of the alcohol molecule into an alkene molecule, it is necessary that an intramolecular dehydration occurs, that is, it is necessary that a water molecule (two H atoms and an O atom) go out from inside the alcohol and that is exactly what happened, that is, we can say that an H atom and an OH group were removed from the reagent to form the alkene.

7 0
3 years ago
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