A mixture of yeseous reeclamts is pul into e cylinder, where a chemical reaction turns them imto yeseous prodlucts. The cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the moxture of 1 atm, The cylinder is alko submerged in a large insulated water bath. (Sre sketch at nght.) 1 am pressure der The temperature of the water bath is monitores, and it is determined from this data that 103. kJ of heat flows out of the system during the reaction. The posilion ol the pislun is also monitored, znd it is delermined Irum Uhis dale thet the piston does 159. k of work on the system during the reaction. mter bath gases O eothermic Is the resction exochermic or endothermic? ndethermic O up Does the temparature of the water bath go up or de ఉం O meither O in Does the pistom move in or out O out Oite O sbsorb Dos the waction absorb or ela egy? O neitiver w much yy dos themectiom aerb or ralaase? Round your answar to 2 significant digits.

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Chapter13: Gases
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Problem 140AP: he following demonstration takes place in a two-step process: rst, solid calcium carbide...
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A mixture of yeseous reaclants is put into a cylinder, where a chemical reactioni Lurris them into yeseous products. The
cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm, The
cylinder is also suhmerged in a large insulated water hath. (See sketch at right.)
1 atm pressure
piston
cyinder
The temperature of the water bath is monitored, and it is determined fram this data that 103. kJ of heat flaws aut of the
mater bath
system during tie reaction. The posilion of the pistun is alsu monilored, end it is delermined Irom Uhis date that the
piston does 159, kJ of work on the system during the reaction.
gases
O exothermic
Is the reaction exothermic or endothermic?
O endethermic
O up
Dees the temperature of the water bath ga up or
O dowg
O neither
O in
Does the piston move in or out?
O out
O nmither
O absorb
Does the rHaction ahsorh or reluANH Hrgy?
O relase
O neither
Hnw much HnMTuy dos the IHartium atrlb ur
ralaase? Round your answer to 2 significant
digits.
Transcribed Image Text:A mixture of yeseous reaclants is put into a cylinder, where a chemical reactioni Lurris them into yeseous products. The cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm, The cylinder is also suhmerged in a large insulated water hath. (See sketch at right.) 1 atm pressure piston cyinder The temperature of the water bath is monitored, and it is determined fram this data that 103. kJ of heat flaws aut of the mater bath system during tie reaction. The posilion of the pistun is alsu monilored, end it is delermined Irom Uhis date that the piston does 159, kJ of work on the system during the reaction. gases O exothermic Is the reaction exothermic or endothermic? O endethermic O up Dees the temperature of the water bath ga up or O dowg O neither O in Does the piston move in or out? O out O nmither O absorb Does the rHaction ahsorh or reluANH Hrgy? O relase O neither Hnw much HnMTuy dos the IHartium atrlb ur ralaase? Round your answer to 2 significant digits.
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