The claim is unintelligible. Get clarification or donate your money to a worthy
ID: 1484480 • Letter: T
Question
The claim is unintelligible. Get clarification or donate your money to a worthy cause, instead.
The claim violates no physical laws and may be worthy of consideration.
The expansion joints cannot accommodate the needed expansion. Procure a new engineering design.
The expansion joints can accommodate more than 10 times the needed expansion. Check if this is cost effective.
A company claims to have developed a hot water heater that heats up 40 US gallons (1 US gal = 3.785 L) of water, from 15 degrees Celsius to 50 degrees Celsius, using 20 MJ (1 MJ = 1 million joules) of natural gas heat. Which advice would you give potential investors? The claim violates no physical laws and may be worthy of consideration. The claim violates a physical law. Don't invest without proof of a new law of the universe. The amount of water heating is less than 10% of what is theoretically possible. Investigate other options.The claim is unintelligible. Get clarification or donate your money to a worthy cause, instead.
Explanation / Answer
Specific Heat of Water = 4.186 J/gm k
1 US = 3.785 L
40 US = 40 * 3.785 L = 151.4 L = 151.4 * 10^3 gm
Energy Required to Heat 40 US Gallon of Water = 151.4 * 10^3 * 4.186 * (50 - 15) J
Q = 2.2 * 10^7 J
What the Company is claiming = 2 * 10^7 J
We Can Celarly See -
The amount of water heating is less than 10% of what is theoretically possible. Investigate other options.
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