Can you please answer question 3 1. When 1 mol of a fuel is burned at constant pressure, itproduces 3452 kJ of heat and does 11 kJ of work. What arethe values of ΔΕ and ΔΗ?2. A gas is compressed from an initial volume of 5.55 L to afinal volume of 1.22L at an external pressure of 1.00 atm.During the compression, 124 J of heat are released. Whatis the AE (in J)?3. A piece of copper metal whose mass is 3.45 g is heated to95.0°C and then dropped onto a calorimeter made of ice at0.0°C. As the metal cools to 0.0°C, 0.372 g of the ice melts(AH (water)=6.01 kJ/mol). From this experiment, find themolar heat capacity (in J/°C*mol) of the copper.4. In order to measure the enthalpy change for the reactionthat occurs in instant cold packs used by athletes, 1.25 g ofNH NO, is dissolved in enough water to make 25.0 mL ofsolution. Th initial temperature is 25.8°C and the finatemperature is 21.9°C. Calculate the AH for the dissolutionreaction below in kJ/mol. Assume that the specific heatcapacity of the solution is 4.18 J/g*°C and that its density1.00 g/mL and that the calorimeter itself absorbs anegligible amount of heat.NH4NO3(s) à NH4+ (aq) + NO₂ (aq)5. When 0.514 g of biphenyl (CH) undergoes combustion ina bomb calorimeter, the temperature rises from 25.8°C to29.4°C. Find the AE for the combustion of biphenyl inkJ/mol biphenyl. The heat capacity of the bombcalorimeter, determined in a separate experiment, is 5.86kJ/°C.6. Use Hess's Law and the following data:Sro(s) à Sr (s) + 1/20₂(g)SrO(s) + CO₂(g) à SrCO3(s)2 CO₂(g) à 2 C(graphite) + 2 O₂(g)AH°= +592 kJAH°= -234kJAH°=+788 kJto determine the standard heat of formation AH (in kJ) forstrontium carbonate (SrCO3). Strontium carbonate emits abrilliant red colour in flames and due to its low cost, is usedin fireworks.

A piece of copper metal whose mass is 3.45 g is heated to 95.0°C and then dropped onto a calorimeter made of ice at 0.0°C. As the metal cools to 0.0°C, 0.372 g of the ice melts (AH (water)=6.01 kJ/mol). From this experiment, find the molar heat capacity (in J/°C*mol) of the copper. fus

A piece of copper metal whose mass is 3.45 g is heated to 95.0°C and then dropped onto a calorimeter made of ice at 0.0°C. As the metal cools to 0.0°C, 0.372 g of the ice melts (AH (water)=6.01 kJ/mol). From this experiment, find the molar heat capacity (in J/°C*mol) of the copper. fus

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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