How Much Energy Is Required to Vaporize 98

question 39

Multiple Choice

How much energy is required to vaporize 98.6 g of ethanol (C₂H₅OH) at its boiling point,if its ΔH_vap is 40.5 kJ/mol?

• A) 86.7 kJ
• B) 11.5 kJ
• C) 18.9 kJ
• D) 52.8 kJ
• E) 39.9 kJ

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Definitions:

Operating System

An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs.

Fopen() Call

A function in C programming used to open a file and associate it with a stream, allowing for data to be read from or written to the file.

Operating System

The software that manages the hardware and software resources on a computer, serving as a base for all application software.

Fflush() Function

A standard library function in C that cleans up the output buffer, forcing the buffered data to be written to the output.