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Chemistry / Chemistry 11 / Chapter 6 / Problem 129P

Chemistry | 11th Edition | ISBN: 9780073402680 | Authors: Raymond Chang

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Solved: A gas company in Massachusetts charges $1.30 for

Chapter 6, Problem 129P

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QUESTION:

A gas company in Massachusetts charges $1.30 for \(15\ f t^{3}\) of natural gas \(\left(\mathrm{CH}_{4}\right)\) measured at \(20^{\circ} \mathrm{C}\) and 1.0 atm. Calculate the cost of heating 200 mL of water (enough to make a cup of coffee or tea) from \(20^{\circ} \mathrm{C}\) to \(100^{\circ} \mathrm{C}\). Assume that only 50 percent of the heat generated by the combustion is used to heat the water; the rest of the heat is lost to the surroundings.

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QUESTION:

A gas company in Massachusetts charges $1.30 for \(15\ f t^{3}\) of natural gas \(\left(\mathrm{CH}_{4}\right)\) measured at \(20^{\circ} \mathrm{C}\) and 1.0 atm. Calculate the cost of heating 200 mL of water (enough to make a cup of coffee or tea) from \(20^{\circ} \mathrm{C}\) to \(100^{\circ} \mathrm{C}\). Assume that only 50 percent of the heat generated by the combustion is used to heat the water; the rest of the heat is lost to the surroundings.

ANSWER:

Step 1 of 7

Density can be calculated by the following formula;

..........................(1)

Rearrange the formula (1)

.......................(2)

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