The heat equivalent of 1 cubic foot of propane and natural gas are 2,500 Btu for propane and 1,050 Btu for natural gas. For example, assume you are using propane gas. The heat produced by 1 cubic foot of propane when burned is 2,500 Btu. Multiply the flow rate in cubic feet of fuel per hour by the amount of heat produced by 1 cubic foot of fuel. Continuing the example, assume the flow rate of propane was 15 cubic feet per hour. The number of Btu produced per hour is 2,500 Btu / cubic foot of propane x 15 cubic feet / hour = 37,500 Btu per hour.
Klinefelter syndrome is a genetic condition that occurs in males when they have an extra X chromosome. Most people have 46 chromosomes. Chromosomes contain all of your genes and DNA, the building blocks of the body. The 2 sex chromosomes (X and Y) determine if you become a boy or a girl. Girls normally have 2 X chromosomes. Boys normally have 1 X and 1 Y chromosome. Klinefelter syndrome results when a boy is born with at least 1 extra X chromosome. Usually, this occurs due to 1 extra X. This is written as XXY. Klinefelter syndrome occurs in about 1 out of 500 to 1,000 baby boys. Women who get pregnant after age 35 are slightly more likely to have a boy with this syndrome than younger women. Symptoms may include any of the following: Abnormal body proportions (long legs, short trunk, shoulder equal to hip size)
Although Klinefelter syndrome encompasses the specific clinical consequences observed in men with an XXY karyotype, there are variant karyotypes that can include additional X chromosomes (e.g., XXXY, XXXXY) or additional X and Y chromosomes (e.g., XXYY).