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Sue T:
from mj 08
6) The density of ice is 1.00 g cm–3.

What is the volume of steam produced when 1.00 cm3 of ice is heated to 323 °C (596 K) at a
pressure of one atmosphere (101 kPa)?

[1 mol of a gas occupies 24.0 dm3 at 25 °C (298 K) and one atmosphere.]

A 0.267 dm3
B 1.33 dm3
C 2.67 dm3
D 48.0 dm3

nid404:


1atm=101kPa

1 moles of water=18g
1g=1/18moles

T= 596K

R=8.31

101000XV=1/18 X 8.31 X 596
           V=275.153333/ 101000
           V=0.00272429043 m3

1m3=1000dm3
 0.00272429043 m3= 0.00272429043 X 1000= 2.7 dm3 approx

sweetie:
hey,
cud u xplain QUE.26 of may08 .........

nid404:

--- Quote from: sweetie on June 02, 2010, 12:27:16 pm ---hey,
cud u xplain QUE.26 of may08 .........

--- End quote ---

If the count of Oxygen increases by 2. Then both OH groups have been oxidised further to COOH. If the OH groups have to be oxidised they have to be primary alcohols. Hence they must be attached to carbon 1 and 4. C

Hope this is clear.

sweetie:

--- Quote from: nid404 on June 02, 2010, 12:31:46 pm ---If the count of Oxygen increases by 2. Then both OH groups have been oxidised further to COOH. If the OH groups have to be oxidised they have to be primary alcohols. Hence they must be attached to carbon 1 and 4. C

Hope this is clear.

--- End quote ---
yup :)
Thank You :-*

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