A sample of liquid in a thermally insulated container (a calorimeter) is stirred for 2 hr…
Chemistry · JEE Main · NTA Exams — Chemical Thermodynamics
A sample of liquid in a thermally insulated container (a calorimeter) is stirred for 2 hr by a mechanical linkage to a motor in the surrounding, for this process;
- w < 0; q = 0; ∆U = 0
- w > 0; q > 0; ∆U > 0
- w < 0; q > 0; ∆U = 0
- w > 0; q = 0; ∆U > 0
Answer
(D) w > 0; q = 0; ∆ U > 0
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. STATEMENT-1…
- The enthalpy change for the reaction, C 2 H 6 (g) → 2C(g) + 6H(g) is X kJ. The bond energy of C–H bond is:
- An ideal gas is allowed to expand form 1 L to 10 L against a constant external pressure of I bar. The work…
- The work done by a weightless piston in causing an expansion ∆V (at constant temperature), when the opposing…
- In a system where ∆E = –51.0 kJ, a piston expanded against a p ext of 1.2 atm giving a change in volume of…
- The enthalpy changes at 25°C in successive breaking of O–H bonds of water are : H 2 O(g) ⟶ H(g) + OH(g) ∆H =…
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion…
- The enthalpy of neutralisation of NH 4 OH and HCl is :
More Chemical Thermodynamics questions · Browse all practice questions