Ideal Gas law for q?

[Susanna Givan 2B]

When do we have to figure out Pressure or moles from the ideal gas law for q and if we don't use that equation, which equation do we use?

[Anthony_3C]

What do you mean by q?

[Layla Qumsieh 3C]

q, heat, is not in the ideal gas law. It has a similar equation, though: q= n*C*(deltaT). For each variable, n is the moles, C is the specific heat capacity (most of which you will need to use are given by the constants equation), and delta T is change in temperature. Using this equation can allow us to find q. This is particularly helpful in problems where we know that one systems heat absorbed is another system's heat expelled (in which case q = -q). For these types of problems, we can break that equation down to n*C*deltaT = - n*C*deltaT, and solve for one of the many variables in that equation. I hope this helps in your understanding of q's relationship to the ideal gas law.