Question

OWL Question for Section 5.1 Mastery Question Status: ? ? ? You must answer 2 of 3 questions correctly in the SAME attempt at this Unit to receive cred go to other Units in this Assignment or to redo this Unit. Chemical Formulas Scientific Notation Periodic Table Tables An automobile engine provides 648 Joules of work to push the pistons. In this process the internal energy changes by -2808 Joules. Calculate the amount of heat that must be carried away by the cooling system. q Joules CHECK ANSWER tion

Answer 1

Thermodynamics I Law The changes in internal energy at a system is equal to the heat added to the systeme minus the work done by the system. = OU Changes internal energy Q - W heat work in so. Q - outw ou tw work (W) = 648 Jones Internal energy Change (oo)=-2808 Joules So heat heat Q = - 2808 +648 Q = -2160 Joules Joules 19 = -2160 Joures