2. A closed system is one in which (a) heat and work cross the boundary of the system, but the mass of the working substance does not (b) mass of working substance crosses the boundary of the system but the heat and work do not (c) both the heat and work as well as mass of the working substances cross the boundary of the system (d) neither the heat and work nor the mass of the working substances cross the boundary of the system. (c) none of the above.

2. A closed system is one in which (a) heat and work cross the boundary of the system, but the mass of the working substance does not (b) mass of working substance crosses the boundary of the system but the heat and work do not (c) both the heat and work as well as mass of the working substances cross the boundary of the system (d) neither the heat and work nor the mass of the working substances cross the boundary of the system. (c) none of the above.

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...

See similar textbooks

Similar questions

A system absorbs 150 kJ heat and does 52 kJ of work. What is the net change in the internal energy of the system............(in Joules)?
A 350.0 g iron pot is heated on a stove for a period of time until it is hot. The stove is turned off and 516 g of cold water (10.0 °C) is added to the pot. When thermal equilibrium is reached, the temperature of the water is 28.4 ° C. What was the initial temperature of the iron pot, assuming heat was exchanged between these two objects and none was lost to the surroundings? (The specific heat capacity of iron is 0.450 J/g °C. The specific heat capacity of water is 4.184 J/g °C) Give only the numerical answer in the box and not units. Give 4 sig figs in your answer. Show the calculations for the problem by writing it on a paper, upload the image file/pdf file in the question for file upload.
A gas is compressed and during this process the surroundings do 59.5 J of work on the gas. At the same time, the gas loses 228 J of energy to the surroundings as heat. What is the change in the internal energy of the gas?
A coffee cup calorimeter contains 156.56 g of water at 22.50 °C. A 66.065 g piece of iron is heated to 101.17 °C. The piece of iron is added to the coffee cup caloriemter and the contents reach thermal equilibrium at 25.68 °C. The specific heat capacity of iron is 0.449 and the specific heat capacity of water is 4.184 How much heat, q, is lost by the piece of iron? Fire = How much heat, q, is gained by the water? qwater = Ccalorimeter = The difference between the heat lost by the piece of iron and the heat gained by the water is due to heat transfer to the styrofoam and the heat required to raise the temperature of the calorimeter. What is the heat capacity of the styrofoam calorimeter in joules per kelvin (*)? What would be the final temperature of the system if all of the heat lost by the iron was absorbed by the water? Tinal J = J °C
2. In studying the energy generated by a person, you may view the person roughly as a constant pressur calorimeter using sugar (i.e., sucrose, C₁2H₂2O11) to generate power. The reaction of table sugar in calorimeter is given by + Ch. 9 Sl....pdf C12H22O11(s)+120₂(g) →12CO₂(g)+11H₂O+heat. C. a. What is the heat released by consuming one mole of sugar (C₁2H22O11) in this b. Calculate the enthalpy of combustion per sugar utilization. mole Does the result of your calculation make I wi (540 Karak 14 11 M de 2009 1 AP fik Tour of 1 way? 20
An automobile engine generates 2210 Joules of heat that must be carried away by the cooling system. The internal energy changes by -2823 Joules in this process. Calculate w for the engine. This represents the work available to push the pistons in this process. Work = J
A system undergoes a process consisting of the following two steps:Step 1: The system absorbs 72 Jof heat while 35 J of work is done on it.Step 2: The system absorbs 35 J of heat while performing 27J of work.Assuming that the heat capacity of the system is 23 J/C and the initial temperatureis 25 C, calculate the final temperaturefor the overall process.
A change in a system occurs such that 31.1 J of work is done by the surroundings and 22.4 J of heat flows from the system to the surroundings. What is the change in internal energy of the system?
. A piece of unknown substance weighs 44.7 g and requires 2110 J to increase its temperature from 23.2 °C to 89.6 °C.(a) What is the specific heat of the substance?
Air in an inflated balloon (system) is cooled and loses 525. J of heat. The surroundings also compress it, doing 91.7 J of work. What is the change in internal energy for the system?
An automobile engine provides 572 Joules of work to push the pistons. In this process the internal energy changes by -2799 Joules. Calculate q for the engine. This represents the amount of heat that must be carried away by the cooling system. q = |Joules
Consider the change in the internal energy of a system. what is the change in the internal energy, in joules, of a system that does 4.75 x 10^5 J of work, while 3.05 x 10^6J of heat is transferred into the system and 8.25 x 10^6J of heat is transferred from the system to the environment?