lim (kl9356) – Extra Credit Homework 23 – Weathers – (17104)
1
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15
questions.
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001
(part 1 of 2) 10.0 points
Given:
R
= 8
.
31451 J
/
K
·
mol
.
How much work is done by the steam when
1
.
1 mol of water at 100
◦
C boils and becomes
1
.
1 mol of steam at 100
◦
C at 1
.
3 atm pressure?
Answer in units of J.
002
(part 2 of 2) 10.0 points
Find the change in internal energy of the
steam as it vaporizes.
Consider the steam
to be an ideal gas with heat of vaporization
2
.
26
×
10
6
J
/
kg. Answer in units of kJ.
003
10.0 points
One mole of an ideal gas is heated at constant
pressure so that its temperature increases by a
factor of 8. Then the gas is heated at constant
temperature so that its volume increases by a
factor of 8.
Find the ratio of the work done during the
isothermal process to that done during the
isobaric process.
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 Fall '08
 Weathers
 Thermodynamics, Magnetism, Energy, Work, Heat

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