At What Kelvin Temperature Does the Rms Speed of the Oxygen

question 59

Multiple Choice

At what Kelvin temperature does the rms speed of the oxygen O₂) molecules in the air near the surface of Earth become equal to the escape speed from Earth? R = 8.31 J/mol · K; molar mass of O₂ gas is 32 g/mol; radius of Earth R_E = 6.37 × 10⁶ m; the escape speed from Earth is 11.2 km/s.)

• A) 4.8 × 10⁵ K
• B) 8.0 × 10⁴ K
• C) 1.6 × 10⁵ K
• D) 1.1 × 10⁴ K
• E) 3.6 × 10⁵ K

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Definitions:

FOPEN_MAX

A macro in C programming that specifies the maximum number of files that can be open simultaneously by a program.

Symbolic Constant

A symbolic constant is a name that substitutes for a constant value. Unlike variables, symbolic constants do not change during program execution.

End-Of-File Sentinel

A special character or sequence used to indicate the end of a file; acts as a marker for processing data up to the file's conclusion.

Fgetc()

A function in C programming used to read and return the next character from a specified file, advancing the file position.