Thursday
April 17, 2014

Homework Help: chemistry

Posted by Lena on Wednesday, March 30, 2011 at 8:52pm.

A studen is asket to calculate the amount of heat involved in changing 10.0 g of liquid bomine at room temperature (22.5 C) to vapor at 59.0 C. To do this, one must know specific heat (0.474 J/g*C), boiling point (59 C), and heat of vaporization (29.6 kJ/mol) of bromine.In addition, the following step-wise process must be followed.

a) Calculate delta H for: Br2 (l, 22.5 C) --> Br2 (l, 59.0 C)

b) Calculate delta H for: Br2 (l, 59.0 C) --> Br2 (g, 59.0 C)

c) Using Hess's law, calculate delta H for: Br2 (l, 22.5 C) --> Br2 (g, 59.0 C)

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

CHEMISTRY - if a pure liquid in a sealed container is in equilibrium with its ...
Chemistry - If you place 10.0 L of propanol (C3H8O) in a sealed room that is 7.5...
science - chemistry - Some heat is supplied to a mixture of ice and liquid water...
Ap Chemistry - at 25 degrees Cliquid A has a vapor pressure of 100.0 torr, while...
chemistry - which of the following factors affect the vapor pressure of a liquid...
Chemistry(defintions) - I need help on finding the definitions to these: ...
AP CHEM-URGENT PLEASE - at 25 degrees C liquid A has a vapor pressure of 100.0 ...
Chemical Engineering: Raoult's Law - A binary mixture of benzene and styrene is ...
physics - When an immersion glass thermometer is used to measure the temperature...
Gen Chem - A liquid is heated from 33.96C to 104.32C. The vapor pressure ...

Search
Members