Home
Class 12
PHYSICS
Given below are some standard heats of r...

Given below are some standard heats of reaction:
a. Heat of formation of water `=- 68.3 kcal`
b. Heat of combustion of acetylene `=- 301.6 kcal`
c. Heat of combistion of ethylene `=- 337.2 kcal`
Calculate the heat of reaction for the hydrogenation of acetylene at constant volume at `25^(@)C`.

A

`tan^(-1)` (4) with + x- axis in clock wise

B

`tan^(-1)(4)` with - x- axis in clock wise

C

`tan^(-1) (4)` with + x- axis in anti clock wise

D

`tan^(-1)(4)` with - x- axis in anti clock wise

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

Given the following standard heats of reactions: (a) heat of formation of water = -68.3 kcal , (b) heat of combustion of C_(2)H_(2) =- 310.6 kcal , (c ) heat of combustion of ethylene =- 337.2 kcal . Calculate the heat of reaction for the hydrogenation of acetylene at constant volume and at 25^(@)C .

Given the following standard heats of reactions: (a) heat of formation of water = -68.3 kcal , (b) heat of combustion of C_(2)H_(2) =- 310.6 kcal , (c ) heat of combustion of ethylene =- 337.2 kcal . Calculate the heat of reaction for the hydrogenation of acetylene at constant volume and at 25^(@)C .

Given the following standard heats of reactions: (a) heat of formation of water = -68.3 kcal , (b) heat of combustion of C_(2)H_(2) =- 310.6 kcal , (c ) heat of combustion of ethylene =- 337.2 kcal . Calculate the heat of reaction for the hydrogenation of acetylene at constant volume and at 25^(@)C .

The heat of formation of CO_(2) and H_(2)O is -97 kcal and -68 kcal. The heat of combustion of benzene is -783 kcal. Calculate the heat of formation of benzene ?

The heat of combustion of ethyl alcohol is -300 kcal. If the heats of formation of CO_(2)(g) and H_(2)O(l) are -9.3 and -68.5 kcal respectively, calculate the heat of formation of ehtyl alcohol.

Standard heat of formation of caebonmonooxide at 298 K is -110.5 kJ. Calculate the standard heat of formation of carbon mono oxide at constant volume and 298 K.

The heat of combustion of ethylene at 18^(@)C and at constant volume is -335.8 kcal when water is obtained in liquid state. Calculate the heat of combustion at constant pressure and at 18^(@)C ?

The heat of combustion of ethylene at 18^(@)C and at constant volume is -330.0 kcal when water is obtained in liquid state. Calculate the heat of combustion at constant pressure and at 18^(@)C ?

The heat of formation of H_(2)O(l) is -68.0 kcal, the heat of formation of H_(2)O(g) can logically be

The heat of combustion at constant volume at 27^(@)C of benzene and acetylene are -800 kcal and 310 kcal . Find the heat of polymerisation of acetylene to benzene at constant pressure.