Monday
November 24, 2014

Homework Help: College Chemistry

Posted by Arian on Sunday, January 23, 2011 at 4:44pm.

1. From data below, calculate the total heat (in J) associated with the conversion of 0.514 mol ethanol gas (C2H6O) at 451C and 1 atm to liquid ethanol at 25.0C and 1 atm. (Pay attention to the sign of the heat.)
Boiling point at 1 atm 78.5C
cgas 1.43 J/gC
cliquid 2.45 J/gC
Hvap 40.5 kJ/mol

2. A 0.75 L bottle is cleaned, dried, and closed in a room where the air is 20C and 42% relative humidity (that is, the water vapor in the air is 0.42 of the equilibrium vapor pressure at 20C). The bottle is brought outside and stored at 0.0C.
What mass of water condenses inside the bottle?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - From data below, calculate the total heat (in J) associated with ...
College Chemistry - 1. From data below, calculate the total heat (in J) ...
College Chemistry - 1. From data below, calculate the total heat (in J) ...
chemistry - From data below, calculate the total heat (J) needed to convert 0....
chemistry - From data below, calculate the total heat (J) needed to convert 0....
chemistry 1 - From data below, calculate the total heat (J) needed to convert 0...
Chemistry - From data below, calculate the total heat (J) needed to convert 0....
Chemistry - Ethanol burns to produce 1300.0 kJ/mol and has a heat capacity of 65...
Chemistry - Given the data below, calculate the total heat (in J) needed to ...
chemistry - Ethanol (C2H5OH) melts at -114 C. The enthalpy of fusion is 5.02 kJ...

Search
Members