00:01
All right, so for this question, we're given two metals, a and b.
00:03
Both have masses of 100 grams, and for both, the initial temperature is 20 degrees celsius, and the final temperature is 21 degrees celsius.
00:11
So we're asked to figure out how much time it'll take each of these to reach the desired heats.
00:18
Well, that depends on q, the heat of this, the transferred heat.
00:27
And that, of course, depends on the mass of the substance, that substance -specific heat, and the change in temperature.
00:36
So heat for a is equal to the mass of a times the specific heat of a, times the change in temperature of a.
00:45
We're trying to figure out how this relates to the heat of b, which depends on the mass of b, the specific heat of b, and the change in temperature of b.
01:00
So we know that the mass of a is equal to the mass of b because they're both 100 grams.
01:07
We know that the change of temperature of a is equal to the change of temperature of b, 20 degrees celsius to 21 degrees celsius.
01:17
And we also know that the specific heat of a is greater than the specific heat of b...