The enthalpy change for the reaction of 50.00 ml of ethylene with 50.

Question

The enthalpy change for the reaction of 50.00 ml of ethylene with 50.00 ml of

H_{2}

at 1.5 atm pressure is

Δ H_{-}

= -0.31 kJ. The value of

Δ E

will be

Options:

A . -0.3024 kJ

B . 0.3024 kJ

C . -2.567 kJ

D . -0.0076 kJ

Answer: Option A
:
A

C_{2} H_{4} (g) + H_{2} (g) \to C_{2} H_{6} (g) Δ n g = 1 - 2 = - 1; Δ H = - 0.31 K J m o l^{- 1} p = 1.5 a t m, Δ V = - 50 m L = - 0.050 L Δ H = Δ E + p Δ V - 0.31 = Δ E - 0.0076; Δ E = - 0.3024 K J

Was this answer helpful ?

Next Question

More Questions on This Topic :

Question 1. A well stopped thermos flask contains ice cubes. This is an example of....

Question 2. Two moles of an ideal gas is expanded isothermally and reversibly from 1 litre to 10 litre at 300 K. The enthalpy change....The enthalpy change ( in kJ) for the process is

Question 3. An ideal gas expands in volume from 1 × 10−3 to 1 × 10−2 m3 at 300 ....against a constant pressure of 1 × 105 Nm−2. The work done is

Question 4. The dissociation energy of CH4 is 400 Kcal mol−1 and that of ethane is 670 Kcal mol−1. The C - C bond ener....670 Kcal mol−1. The C - C bond energy is.

Question 5. The standard enthalpies of formation of CO2(g), H2O(l) and glucose(s) at 25∘C are −400 kJ/mol, ȡ....enthalpy of combustion per gram of glucose at 25∘C is

Question 6. In a process a system does 140 J of work on the surrondings and only 40 J of heat is added to the system, hence change i....added to the system, hence change in internal energy is

Question 7. Which of the following is /are true in the case of an adiabatic process....

Question 8. The enthalpies for the following reactions at 25°C are given. 12 H2(g) + 12 O2(g)→OH(g);....the OH bond energy in the O - H group

Question 9. The heat of combustion of yellow phosphorous & red phosphorous are - 9.91 KJ and - 8.78 KJ respectively. The h....heat of transition of yellow phosphorous to red phosphorous is:

Question 10. The enthalpy of neutralization of HCl and NaOH is −57 kJ mol−1. The heat evolved at constant pre....of H2SO4 react with 0.75 mole of NaOH is equal to

Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

DSP Combined 1 Free Revision Test SAIL JO E-0

GPOE / GPA Combined 1 Free Revision Test SAIL JO E-0

BSP Plant Specific Review Test SAIL JO E-0

BSL Combined 1 Free Revision Test SAIL JO E-0

GFM Combined 1 Free Revision Test SAIL JO E-0