Assume electricity cost 15 cents kw per hour....using the energy requirements.what is the per gram cost of energy to produce Na + AL?

Useful info: 2NaCL --> 2Na + CL2

around 600 degree C; 14 KJ per g Na.

1000 degrees C; 30 KJ per g Al
in cryalite (Na3AlF6) so can be liquid below Tm~2000 degrees C

The 15 cents you quoted would be per kilowatt-hour, not per kw/hour. Energy is the product of power and time.

For Na, if you need 14,000 J of electricity to make 1 gram, then make the conversions 14,000 J = 14,000 Watt-second= 14 kw-second = 14/3600 kw-hour = 0.00389 kw-hour

The cost would be 15 cents/kwh x 0.00389 kwh = 0.058 cents

Do the aluminum question the same way.

  1. 👍
  2. 👎
  3. 👁

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    Assume it costs Microsoft $4,300 to manufacture 7 Xbox 360s and $8,290 to manufacture 14. Obtain the corresponding linear cost function. C(x)= (what formula do I use to get the cost function, because I can't get it) What was the

  2. Mathematics

    The cost of a car service is partly constant and partly varies with the time it takes to do the work .if cost 3500 naria for a 5 1/2 hour service and 2900 naira for a 4 hour service. Find the formula connecting cost , naira C with

  3. algebra

    Ryan buys cheese from the local farmer's market. The graph below shows the cheese cost (in cents) versus its weight (in ounces). Use the graph to answer the questions. Cost (cents) y6121824303642485460x1234567890 Weight (ounces)

  4. math

    A airplane crosses the Atlantic Ocean (3000 miles) with an airspeed of 600 miles per hour. The cost C (in dollars) per passenger is given by... C(x)= 150 + x/20 + 36,000/x Where x is the ground speed (airspeed plus or minus wind).

  1. math

    a parking lot charges $1.50 for the first hour of parking and 55 cents for each additional half hour how much would it cost to park a car from 12:45pm to 6:15 pm

  2. math

    A rectangular box with a volume of 320 cubic units is to be constructed with a square base and top. The cost per square foot of the bottom is 15 cents, for the top 10 cents, and for the sides is 2.5 cents. Find the dimensions that

  3. Science

    1. An electric space heater draws 15.0 A from a 120 V source. It is operated, on average, for 5.0h (hours) each day. a) How much power does the heater use and b) At $.10 per kWh, what does it cost to operate the heater for 30

  4. Chemistry

    A household receives a $155 electricity bill. The cost of electricity is $0.129/kWh.How much energy, in joules, did the household use?

  1. Math

    a photocopy store advertises the following prices: 5 cents per copy for the first 20 copies, 4 cents per copy for the 21st through 100th copy, and 3 cents per copy after the 100th copy. Let x be the # of copies, and let y = the

  2. Math

    PLEASE HELP ME At the taste Bakery,cupcakes cost fifty cents each.Bagel cost a dollar twenty five.How much more do two bagels cost than two cupcakes

  3. Algebra

    Solving using 2 equations in two variable: Jason bought a total of 7 postcards for 1.80. If small cost 20 cents and the large ones cost 30 cents, how many postcards of each size did he buy?

  4. statistics

    Assume that the mean hourly cost to operate a commercial airplane follows the normal distribution with a mean of $2,225 per hour and a standard deviation of $220. What is the operating cost for the lowest 5 percent of the

You can view more similar questions or ask a new question.