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Physics 7A support workshop - Shared screen with speaker view
nicole fish
15:37
Lower temp
Noelle Tran
15:38
cool it to 0
Jessica Marelli
15:41
remove heat
Shwetha Sekar
16:02
put it in something cold
Jessica Marelli
16:05
put it with something colder
Abraham Martinez
16:07
Environment has to be cold
Jessica Marelli
16:42
0 degrees celsius
Jessica Marelli
17:17
below 0
Danielle Thibeadeaux
17:18
negative
Noelle Tran
20:41
Eth
Danielle Thibeadeaux
20:42
thermal
Noelle Tran
21:08
4.18?
nicole fish
21:09
4.184
Kimia Tavassoli
21:11
4.18?
Jessica Marelli
21:29
-50
nicole fish
22:34
The one with log
nicole fish
23:22
why don’t we just use 4.184?
nicole fish
23:23
For C
nicole fish
23:44
oh okay thank you
Noelle Tran
24:00
no
Jessica Marelli
24:01
no
Danielle Thibeadeaux
24:02
no
Noelle Tran
24:02
You need kelvin
Kimia Tavassoli
25:04
in what case would we use Q / Tavg? like what constitutes a slight change in temp? is there a specific range we should look for when solving
nicole fish
25:50
Add and divide by two
Kimia Tavassoli
27:02
ohh ok thank you!
Danielle Thibeadeaux
27:34
bond
nicole fish
27:34
mHmelt
Danielle Thibeadeaux
28:22
333.5kj/kg
nicole fish
29:04
Q/t
Shwetha Sekar
29:04
Q/t
Shwetha Sekar
30:53
2.01
Kylee Wong
32:42
Why did we use delta H melt when calculating Q for liquid freezing state ?
Kylee Wong
33:01
Thank you!
nicole fish
34:01
cannot move as much?
Jessica Marelli
34:39
^
Jessica Marelli
36:14
yes
Abraham Martinez
36:15
no
Jessica Marelli
36:24
as long as the overall is increasing
Abraham Martinez
36:44
Oh okay
Noelle Tran
37:54
no
Abraham Martinez
37:54
no
Danielle Thibeadeaux
37:54
no
Noelle Tran
37:57
The air
Jessica Marelli
38:54
263
Danielle Thibeadeaux
38:55
263
nicole fish
39:11
Eth?
Jessica Marelli
39:11
by the Q the water lost
Noelle Tran
41:10
how did you determine 263K for the air again?
Noelle Tran
41:20
thank you!
Jessica Marelli
41:28
it is more positive therefore the overall the change in S is increasing
Jessica Marelli
41:34
so it agrees with the 2nd law
Abraham Martinez
46:03
temp
Kimia Tavassoli
46:20
isothermal
Kimia Tavassoli
47:38
b * h?
nicole fish
48:20
Q/t
Jessica Marelli
48:44
why is the absolute value of temperature important on a TS diagram, but the absolute value of entropy on a TS diagram can be arbitrarily set?
Jessica Marelli
50:01
no
nicole fish
50:08
temp?
Jessica Marelli
50:08
Q?
Danielle Thibeadeaux
50:13
ti and tf
Jessica Marelli
50:32
Q?
Abraham Martinez
50:39
M and H
Shwetha Sekar
50:45
Delta S
Bridget Cao
50:47
delta entropy
Danielle Thibeadeaux
52:27
Thank you!!
Kimia Tavassoli
52:28
thank you!
Abraham Martinez
52:30
Thank you