Natural gas, or methane, is an important fuel. Combustion of one mole of methane releases 802.3 kilojoules of energy. How much energy does that represent in kilocalories?

Answers

Answer 1
Answer:

Answer: 802.3 kilo Joules of energy represents 191.75 kilo Calorie of energy.

Explanation:

Energy released during combustion of one mole methane = 802.3 kilo Joules

If 1 kilo Joule = 0.239006  kilo Calorie

Then ,802.3 kilo joule will be = 802.3*0.239006 kilo Calorie

802.3 kilo joule = 191.75 kilo Calorie

Hence, the energy in kilo Calorie is 191.75 kilo Calorie.

Answer 2
Answer:

Answer:

191.7497 Kilocalories

Explanation:

Step 1:

Data obtained from the question:

Energy released = 802.3KJ

Step 2:

Conversion of the energy released in kilojoules to kilocalories. This is illustrated below:

1 KJ = 0.239 kilocalorie

Therefore, 802.3 KJ = 802.3 x 0.239 = 191.7497 Kilocalories

From the calculation above, 802.3 KJ is equivalent to 191.7497 Kilocalories


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Answers

D should be the correct answer.  isotopes are atoms that have the same atomic number (number of protons) but different atomic masses (number of protons and neutrons).  isotopes also have the same number of electrons since atoms need to have equal numbers of protons and electrons to not be considered ions.  Since the number of protons determines the chemical properties of the atom, we can say that all isotopes have the same chemical properties due to the fact that all isotopes have the same atomic number.

I hope this helps.  Let me know in the comments if anything is unclear.

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Answers

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Answers

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Answers

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Answers

Given:

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Required:

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Solution:

2H2 + O2 -> 2H2O

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Answers

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