AP Chem Chapter Flashcard Course Home CHW1 CHEM 142 Problem 5.27 - Enhanced - with Feedback 18 of 30 Review I Constants Periodic Table A gas is confined to a cylinder fitted with a piston and an electrical heater, as shown here: Identity the sign (positive, negative, or zero) of a and w in case (1), w is positive and is negative Both w and are negative Both w and q are positive teis zero and is positive wis negative and is positive w is positive and is 2010 Submit Request Answer Part C Suppose that current is supplied to the heaters that 100) of energy is added. Consider two different situations. In case (1) the piston is allowed to move as the energy is added in case (2) the platon is twed so that it cannot move. Identity the sign positive, negative, or zero) of 4 and win caso (2). w is zero and is positive Both w and are negative. Both w and are positive. wis negative and is positive wis positive and is zero w is positive and is negative Submit Request