00:01
Hello.
00:02
So this question is about energy conservation.
00:05
Okay.
00:07
So here what we're going to be doing is that the heat gained by ice, ice will be called to heat last by the t.
00:29
Okay.
00:30
So when we put ice into the t, the t is going to lose heat.
00:35
The ice is going to gain heat.
00:37
Okay.
00:38
So we're going to use kew to represent heat.
00:41
Or energy of the ice equals energy of the t.
00:51
So for the ice at zero degrees, we're gonna have, so the ice will have to melt, so that's gonna be the mass of the ice times the latent heat of fusion.
01:07
And then once it melts, it's gonna mix with a t.
01:09
So we're gonna have the mass of the ice, specific heat capacity of the ice, which will now become warm, times changing temperature of the ice.
01:27
And then here we're going to have m of the t specific heat capacity of the t.
01:33
So for the t we're going to assume it's just water.
01:37
So we're just going to have that times changing temperature of the t.
01:43
So since we are looking for the mass of the ice, we can bring that out.
01:48
We're going to have lf plus c of water, changing temperature of ice equals m t.
01:56
T, that changing temperature.
02:00
Just a second.
02:02
Changing temperature of the t.
02:06
So the mass of ice is going to be equal to mass of the t, specifically the capacity of water times changing temperature of the t divided by lf plus c dot, changing temperature of ice.
02:34
Okay, so now let's try the substitution.
02:38
The mass of the t is 1 .8 kilograms.
02:43
So that's 1 .8.
02:45
Specific heat capacity of water is approximately for the 200...