6. Relating Heat and Work to Changes of Internal Energy Gases A(g) and B(g) are confined in a cylinder-and-piston arrangement like that in Figure 5.4 (see below) and react to form a solid product C(s): A(g) + B(g) → C(s). As the reaction occurs, the system loses 1150 J of heat to the surroundings. The piston moves downward as the gases react to form a solid. As the volume of the gas decreases under the constant

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6. Relating Heat and Work to Changes of Internal Energy
Gases A(g) and B(g) are confined in a cylinder-and-piston arrangement like that in Figure
5.4 (see below) and react to form a solid product C(s): A(g) + B(g) → C(s). As the reaction
occurs, the system loses 1150 J of heat to the surroundings. The piston moves downward
as the gases react to form a solid. As the volume of the gas decreases under the constant
Transcribed Image Text:6. Relating Heat and Work to Changes of Internal Energy Gases A(g) and B(g) are confined in a cylinder-and-piston arrangement like that in Figure 5.4 (see below) and react to form a solid product C(s): A(g) + B(g) → C(s). As the reaction occurs, the system loses 1150 J of heat to the surroundings. The piston moves downward as the gases react to form a solid. As the volume of the gas decreases under the constant
pressure of the atmosphere, the surroundings do 480 J of work on the system. What is the
change in the internal energy of the system?
Energy can enter or
leave system as heat or
as work done on piston
Matter can not enter
or leave system
Surroundings = cylinder,
piston, and everything beyond
System = H2(g) and O2(g)
ara t
Transcribed Image Text:pressure of the atmosphere, the surroundings do 480 J of work on the system. What is the change in the internal energy of the system? Energy can enter or leave system as heat or as work done on piston Matter can not enter or leave system Surroundings = cylinder, piston, and everything beyond System = H2(g) and O2(g) ara t
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