A mixtu V gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous 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 submerged in a large insulated water bath. (See sketch at right.) 1 atm pressure piston „cylinder From previous experiments, this chemical reaction is known to release 155. kJ of energy. water bath gases The temperature of the water bath is monitored, and it is determined from this data that 297. kJ of heat flows into the system during the reaction. exothermic Is the reaction exothermic or endothermic? endothermic up Does the temperature of the water bath go up or down? down neither in Does the piston move in or out? out neither does work Does the gas mixture do work, or is work done on it? work is done on it neither How much work is done on (or by) the gas mixture? Round your answer to 3 significant

A mixtu V gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous 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 submerged in a large insulated water bath. (See sketch at right.) 1 atm pressure piston „cylinder From previous experiments, this chemical reaction is known to release 155. kJ of energy. water bath gases The temperature of the water bath is monitored, and it is determined from this data that 297. kJ of heat flows into the system during the reaction. exothermic Is the reaction exothermic or endothermic? endothermic up Does the temperature of the water bath go up or down? down neither in Does the piston move in or out? out neither does work Does the gas mixture do work, or is work done on it? work is done on it neither How much work is done on (or by) the gas mixture? Round your answer to 3 significant

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The 1 atm pressure 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 submerged in a large insulated water bath. (See sketch at right.) piston cylinder From previous experiments, this chemical reaction is known to release 297. kJ of energy. water bath gases The position of the piston is monitored, and it is determined from this data that the system does 111. kJ of work on the piston during the reaction. O exothermic Is the reaction exothermic or endothermic? O endothermic O up Does the temperature of the water bath go up or down? O down O neither O in Does the piston move in or out? O out O neither O in Does heat flow into or out of the gas mixture? O out O neither How much heat flows? Be sure your answer has the correct number of significant digits.
A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them 1 atm pressure piston cylinder water bath gases do into gaseous 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 submerged in a large insulated water bath. (See sketch at right.) The temperature of the water bath is monitored, and it is determined from this data that 290. kJ of heat flows out of the system during the reaction. The position of the piston is also monitored, and it is determined from this data that the system does 315. kg of work on the piston during the reaction. O exothermic Is the reaction exothermic or endothermic? O endothermic O up ? Does the temperature of the water bath go up or down? O down O neither O in Does the piston move in or out? O out O neither O absorb Does the reaction absorb or release energy? O release O neither How much energy does the reaction absorb or release?…
DOMINGO Understanding the definitions of heat and work O 0/5 A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them 1 atm pressure piston cylinder water bath gases do into gaseous 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 submerged in a large insulated water bath. (See sketch at right.) The temperature of the water bath is monitored, and it is determined from this data that 290. kj of heat flows out of the system during the reaction. The position of the piston is also monitored, and it is determined from this data that the system does 315. kJ of work on the piston during the reaction. O exothermic Is the reaction exothermic or endothermic? O endothermic O up Does the temperature of the water bath go up or down? O down O neither O in Does the piston move in or out? O out O neither O absorb Does the reaction absorb or release energy? O release O…
exothermic Is the reaction exothermic or endothermic? O endothermic Oxto O up Does the temperature of the water bath go up or down? O down O neither O in Does the piston move in or out? O out O neither O does work Does the gas mixture do work, or is work done on it? O work is done on it O neither How much work is done on (or by) the gas mixture? Round your answer to 3 significant kJ digits.
A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous 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 submerged in a large insulated water bath. (See sketch at right.) 1 atm pressure piston From previous experiments, this chemical reaction is known to release 326. kJ of energy. cylinder water bath The position of the piston is monitored, and it is determined from this data that the system does 169. kJ of work on the piston during the reaction. gases O exothermic Is the reaction exothermic or endothermic? O endothermic dn O O down Does the temperature of the water bath go up or down? O neither O in Does the piston move in or out? O out O neither
7. When detern ing the mass of a liquid, ras in a hurry and did not allow enough time for the temperature of the flask to reach the temperature of the boiling water bath. The student recorded the temperature of the gas as 100.0°C when it was only 80.0°C, Is the molar mass calculated by the student higher or lower than the accepted molar mass, or does this error have no effect on the calculated result? Briefly explain your answer # 2/HB Office DEPOTS b) If the student assumed the volume of the flask was 125 mL (as marked by the side of the flask) rather than measuring the volume experimentally, would the unknown's calculated molar mass be too high, too low, or unaffected? Explain. # 2/HB 4
A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous 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 submerged in a large insulated water bath. (See sketch at right.) 1 atm pressure piston cylinder From previous experiments, this chemical reaction is known to absorb 106. kJ of energy. water bath The temperature of the water bath is monitored, and it is determined from this data that 157. kJ of heat flows out of the gases system during the reaction. O exothermic Is the reaction exothermic or endothermic? O endothermic O up Does the temperature of the water bath go up or down? O down O neither O in Does the piston move in or out? O out O neither O does work Does the gas mixture do work, or is work done O work is done on it on it? O neither How much work is done on (or by) the gas mixture? Be sure your answer has the correct number of…
The preparation of NO2(g) from N2(g) and O2(g) is an endothermic reaction: N2(g) + O2(g) -> NO2(g) (unbalanced) The enthalpy change of reaction for the balanced equation (with lowest whole-number coefficients) is ∆H = 67.7 kJ. If 250 mL of N2(g) at 100oC and 3.50 atm and 450 mL of O2(g) at 100oC and 3.50 atm are mixed, what amount of heat is necessary to synthesize NO2(g)?
A mixtu. - gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The 1 atm pressure 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 submerged in a large insulated water bath. (See sketch at right.) piston cylinder From previous experiments, this chemical reaction is known to absorb 255. kJ of energy. water bath The temperature of the water bath is monitored, and it is determined from this data that 155. kJ of heat flows into the gases system during the reaction. O exothermic Is the reaction exothermic or endothermic? O endothermic O up ? Does the temperature of the water bath go up or down? O down O neither O in Does the piston move in or out? O out O neither O does work Does the gas mixture do work, or is work done on it? O work is done on it O neither How much work is done on (or by) the gas mixture? Be sure your answer has the correct number of…
A mixture of gaseous reactants is put in to a cylinder, where a chemical reaction turns them in to gaseous 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 submerged in a large insulated water bath. From previous experiments, this chemical reaction is known to absorb 243. kJ of energy. The temperature of the water bath is monitored, and it is determined from this data that 109.kJ of heat flows out of the system during the reaction. A.) is the reaction exothermic or endothermic? B.) Does the temperature of the water go up or down? C.) does the piston move in, out, or neither? D.) does the gas mixture do work, Or is work done on it? E.) how much work is done on (or by) the gas mixture?
A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous 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 submerged in a large insulated water bath. (See sketch at right.) 1 atm pressure piston .cylinder From previous experiments, this chemical reaction is known to absorb 262. kJ of energy. water bath gases The temperature of the water bath is monitored, and it is determined from this data that 205. kJ of heat flows into the system during the reaction. O exothermic O endothermic Is the reaction exothermic or endothermic? O up ? Does the temperature of the water bath go up or down? O down O neither O in Does the piston move in or out? O out O neither O does work o work is done on it Does the gas mixture do work, or is work done on it? O neither How much work is done on (or by) the gas mbxture? Be sure your answer has the correct number of…