Sunday
December 21, 2014

Homework Help: chemistry

Posted by Trish on Monday, April 19, 2010 at 7:38pm.

Calculate the energy that must be removed to convert substance X from a gas at 115C to a solid -50.7C. Assume X has a molar mass of 75.0 g/mol.

Specific heat capacities
ΔHvap 20. kJ/mol C(s) 3.0 J/g C
ΔHfus 5.0 kJ/mol C(l) 2.5 J/g C
bp 75C C(g) 1.0 J/g C
mp −15C

If you can go step by step so I can understand how this is done That would be great! Thanks

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry - Calculate the energy that must be removed to convert substance X ...
Chem- Dr bob! or GK! - Calculate the energy that must be removed to convert ...
Chemistry - In a chemical reaction, exactly 2 mol of substance A react to ...
Chemistry - Assume that a reaction occurs in which unknown substances R and S ...
chemistry - In a chemical reaction, exactly 2 mol of substance A react to ...
AP Chemistry - Consider a 50.4 g sample of H2O(g) at 115C. What phase or phases...
Chemistry - Calculate the heat (in kJ) required to transform 58.60 g of ...
Chemistry - Consider the process where 1.3 moles of ice, initially at -30.0 C, ...
Chemistry - Consider the process where 1.3 moles of ice, initially at -30.0 C, ...
chemistry - the molar mass of an unknown gas was measured by an effusion ...

Search
Members