Ber causing the temperature to rise by 15" Find and to the process
- wa CUST
[2 marks
De=Qtw
b. The same liquid as in part b above is stirred in a conducting chamber. During the
process 1.7 K of heat are transferred from the liquid to the surroundings, while the
temperature of the liquid is rising to 15°C. Find A E and w for the process
[2 marks
A mass of 8 kg gas expands within a flexible container so that the p-v relationship is of the
from PV = constant. The initial pressure is 1000 kPa and the initial volume isim the
final pressure is 5 kPa. If specific internal energy of the gas decreases by 40k/kg, find the
heat transfer in magnitude and direction
14 marks
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Natural forces that can alter ecosystems include seasons and climate changes. t or f

You and a friend (alex) are at a a tree-top adventure park .. . part of the course requires you to climb up a rope. you both climb the same rope in the same amount of time. however, the tension in the rope is greater when alex climbs. who did the most work? alex did - more tension means more force - more force means more work was done you did - less tension means less force - less force means more work was done to find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? when more work was done, the couch was moved less. when more work was done, the couch was moved further. when more work was done, the couch wasn't moved at all. when more work was done, the couch was moved the same distance.

The precision of a laboratory instrument is ± 0.05 g. the accepted value for your measurement is 7.92 g. which measurements are in the accepted range? check all that apply. 7.85 g 7.89 g 7.91 g 7.97 g 7.99 g