A cylinder of compressed gas contains 1500 psig at 70° F; the cylinder is heated to 120° F. Which of the following effects will occur as a result of the temperature change?
1. There will be increased kinetic activity in the contents of the cylinder
2. The volume of gas in the cylinder will increase
3. The pressure indicated on the pressure gauge will increase.
a. 1 only c. 1 and 3
b. 1 and 2 d. 2 and 3
ANS: C
The increased temperature will increase the kinetic activity of the molecules which make up the gas. Charles law states that pressure and temperature are directly proportional. An increase in temperature will increase the pressure.
You might also like to view...
Forced breathing involves the accessory muscles during inhalation and the ________ muscles and abdominal muscles during exhalation
A) external intercostal B) sternal C) internal intercostal D) All of the above
Concerning attempted suicide, which of the following statements is true?
A) Truly suicidal patients nearly always leave a note. B) There is always an indication that a suicide attempt is imminent. C) All suicide attempts must be taken seriously, even if the method seems insincere. D) Attempted suicide is a matter for law enforcement, not EMS.