during Physical and chemi cal Procees.th10) The enthalpy fumetion changed Jith C.3 The amount of heat at constant presure is (The4stancDefinethe calorimetry? stuly of heut trams furand it equal to ().3 The internal energy function to4) AGrding to the Joul's experiment the valueof (auaual to Zaro.5) For omidealthe differenee betweengarenthalpy and internal enequal to Ceneryy6 The feation between heat capaity at constantvolume and heat capacity at conStast pressunis c7) The heat capacity at constant volume (than the heat apacity at constant pressurea P work done in the adia oatre processequal to c2 For mono atomic gus the value of pqudto (processeThe Value of su equl to1) For isothermal

State variables are variables used to describe the mathematical state of a dynamic system - a system…

Answered: Define during PlyS the calorimetry?

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Define during PlyS the calorimetry?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter2: The Kinetic Theory Of Gases

Section: Chapter Questions

Problem 10CQ: Statistical mechanics says that in a gas maintained at a constant temperature through thermal...

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A 1.28-kg sample of water at 10.0 is in a calorimeter. You drop a piece of steel with a mass of 0.385 kg at 215 into it. After the sizzling subsides, what is the final equilibrium temperature? (Make the reasonable assumptions that any steam produced condenses into liquid water during the process of equilibration and that the evaporation and condensation don't affect the outcome, as we'll see in the next section.)
A mercury thermometer still in use for meteorology has a bulb with a volume of 0.780 cm3 and a tube for the mercury to expand into of inside diameter 0.130 mm. (a) Neglecting the thermal expansion of the glass, what is the spacing between marks 1 apart? (b) If the thermometer is made of ordinary glass (not a good idea), what is the spacing?
A 125 ml pyrex flaskfilled with water to thebrim was heated to 85Celsius. Initial temperatureof both flask and water is15 Celsius.Another activity in the labwas done whereincontainer B was filled with125 ml liquid Ato the brim and wasexposed to the sameconditions. Find the ratio ofamount overflow of waterto that of liquid AConstant for water = 2.1x10^-4/CelsiusConstant for pyrex= 0.09 x10^-4/ CelsiusConstant for liquid A 1.0 x10^-4/CelsiusConstant for container B=0.2 x 10 ^-4
If the gases of the preceding problem are initially at 300 K, what are their internal energies after they absorb the heat?
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Heliox, a mixture of helium and oxygen, is sometimes given to hospital patients who have trouble breathing, because the low mass of helium makes it easier to breathe than air. Suppose helium at 25 is mixed with oxygen at 35 to make a mixture that is 70% helium by mole. What is the final temperature? Ignore any heat flow to or from the surroundings, and assume the final volume is the sum of the initial volumes.
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Check your Understanding Show that QhQh=QcQc for the hypothetical engine of Figure 4.10 The second property to be demonstrated is that all reversible engines operating between the same two reservoirs have the same efficiency. To this, stat with the two engines D and E of Figure 4.10 (a), which are operating between two common heat reservoirs at temperatures Th and Tc . First, assume that D is a reversible engine and that E is a hypothetical irreversible engine that has a higher efficiency than D. If both engines perform the same amount of work W per cycle, it follows from Equation 4.2 that QhQh . It then follows from the first law that QcQc . Figure 4.10 (a) Two uncoupled engines D and E working between the same reservoirs. (b) The engines, With D working reverse. Suppose the cycle of D is so that it operates as a refrigerator, and the two engines are coupled such that the work output of E is used to drive D, as shown in Figure 4.10(b). Since QhQh and QcQc , the net result of each cycle is equivalent to a spontaneous transfer of heat from the cold reservoir to the hot reservoir, a process second law does not allow. The original assumption must therefore be wrong, and it is impossible to construct an irreversible engine such that E is more efficient than the reversible engine D. Now it is quite easy to demonstrate that the efficiencies of all reversible engines operating between the same reservoirs are equal. Suppose that D and E are reversible engines. If they are as shown in Figure 4.10(b), the efficiency of E cannot be greater than the efficiency of D, or second law would violated. If both engines are then reversed, the same reasoning implies that the efficiency of D cannot be greater than the efficiency of E. Combining these results leads to the conclusion that all reversible engines working between same two reservoirs have the same efficiency.