With the pressure held constant at 210 kPa, 98 moles of a diatomic ideal gas expands from an initial volume of 0.75 m3 to a final volume of 1.9 m3. Assume that the change in internal energy of the gas is given by 5/2nRDT. Qn 2 What was the change in the internal energy of the gas?

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration

Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.