Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 11-science Answered

How is isothermal irreversible expansion cyclic  and how is delta H=0 for the process?
Asked by prakriti12oct | 26 Sep, 2019, 01:40: AM
answered-by-expert Expert Answer
The isothermal irreversible expansion process is an acyclic process because when the gas expands irreversibly then it can not return into its previous state so it is not cyclic. Enthalpy change is zero in the isothermal process because enthalpy is a function of temperature. So when the temperature is constant it is also constant and Enthalpy change=0. 
Answered by Ravi | 26 Sep, 2019, 06:17: PM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 11-science - Chemistry
Que: Differentiate between enthalpy and entropy??
Asked by advssdrall | 11 Jan, 2022, 07:44: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
PMM2 kind is impossible according to
Asked by adityasolanki7773 | 22 Oct, 2020, 03:40: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
a steel fiber is in a oxygen filled container which is closed with a frictionless piston. the iron in the steel fiber reacts with oxygen to form Fe2O3 , the heat generated by the reaction is removed during the process to maintain the temperature constant which is 25 degrees centigrade. for the reaction of 2 moles of iron 831.08KJ of heat is removed. calculate the heat , work and internal energy of change of the system
Asked by pranavisrihari | 08 Sep, 2020, 05:24: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
How to solve this Question?
question image
Asked by varakalasuchi3 | 28 Mar, 2020, 04:47: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
When 100ml of strong acid mixed with 100ml of strong base, change in temperature is 5°c. Determine the change in temperature when 10ml of strong acid mixed with strong base.
Asked by patra04011965 | 09 Nov, 2019, 12:18: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Please answer
question image
Asked by prakriti12oct | 27 Sep, 2019, 01:43: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
How is isothermal irreversible expansion cyclic  and how is delta H=0 for the process?
Asked by prakriti12oct | 26 Sep, 2019, 01:40: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
The transition Sn(s, gray) ⇌ Sn(s, white) is in equilibrium at 18°C and 1 atm pressure. If ΔS = 8.811K mol for the transition at 18°C and if the densities are 5.75 g/cm3 for gray tin and 7.28 g/cm3 for white tin, calculate the transition temperature under 100 atm pressure
question image
Asked by sayantan.chem2 | 06 Aug, 2019, 05:07: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
6.63 sum
question image
Asked by lovemaan5500 | 21 Jan, 2019, 06:37: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
One mole of anhydrous MgCl2 dissolves in water and librates 25 cal/mol of heat. ∆Hhydration of MgCl2 = –30 cal/mol. Heat of dissolution of MgCl2.7H2O(s) is :- (1) +5 cal/mol (2) –5 cal/mol (3) 55 cal/mol (4) –55 cal/mol
Asked by Atulcaald | 25 May, 2018, 12:24: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×