00:01
In this question, we say that the heating or cooling of a substance is given by this equation.
00:06
I have q equals m times c sub sp times delta t, where q is equal to the energy transferred as heat, m is equal to the mass, c sub sp is the specific heat, and delta t is the change in temperature.
00:24
Now, note we are going to write delta t as dt with no spaces, and we're going to write c sub sp as c in the answers below.
00:36
So we are trying to solve for the mass.
00:40
And if we're going to do that, the question is, what do we multiply both sides by? this looks more complicated than it actually is.
00:49
It's intimidating in terms of what it looks like, but it's not as bad as it looks.
00:54
So my goal is to solve for m, to get m by itself.
01:00
So what am i going to do? well, i'm going to multiply by the reciprocal of what's here.
01:07
So we're going to multiply by 1 over, now the c sub sp, we're going to write that as c, they said, and the delta t, we're going to write that as dt...