Home
Class 12
CHEMISTRY
The heat of combustion of yellow phoshph...

The heat of combustion of yellow phoshphorus and red phosphorus are `-9.91KJmol^(-1)` and `-8.78` KJ/mol respectively. The heat of transition from yellow phosphrous to red phosphorus is

A

`-18.69` kJ

B

`+1.13` kJ

C

`+18.69` kJ

D

`-1.13` kJ

Text Solution

Verified by Experts

The correct Answer is:
D
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • THERMODYNAMICS

    AAKASH INSTITUTE ENGLISH|Exercise SECTION-C|13 Videos
  • THERMODYNAMICS

    AAKASH INSTITUTE ENGLISH|Exercise SECTION-D|9 Videos
  • THERMODYNAMICS

    AAKASH INSTITUTE ENGLISH|Exercise SECTION-A|45 Videos
  • THE SOLID STATE

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION - D) (ASSERTION-REASON TYPE QUESTION)|20 Videos

Similar Questions

Explore conceptually related problems

The heats of combustion of yellow P and red P are -9.91kJ and -8.78 kJ respectively. The heat of transition of yellow to red phosphorus is

The heat of combustion of carbon and monoxide are -394 and -285 KJ mol^(-1) respectively. The heat of formation of CO in KJ mol^(-1) is :-

Knowledge Check

  • Heat of combustion of two isomer x and y are 17 kJ/mol and 12 kJ/mol respectively. From this information it may be concluded that :

    A
    isomer x is 5 kJ/mol more stable
    B
    isomer y is 5 kJ/mol less stable
    C
    isomer y has 5 kJ/mol more potential energy
    D
    isomer x is 5 kJ/mol less stable
  • The heat of combustion of ethane and benzene is -1560 and -3268" kJ mol"^(-1) respectively. Which two has higher efficiency as fuel per gram and the amount of heat produced per gram?

    A
    Benzene, `41.9" kJ g"^(-1)`
    B
    Ethane, `"52 kJ g"^(-1)`
    C
    Benzene, `"78 kJ g"^(-1)`
    D
    Ethane, `"30 kJ g"^(-1)`
  • Similar Questions

    Explore conceptually related problems

    The heats of combustion of carbon and carbon monoxide are −393.5 and −283.5 kJ mol ^(−1) respectively. The heat of formation (in kJ) of carbon monoxide per mole is:

    The heat of atomisation of PH_(3)(g) and P_(2)H_(4)(g) are 954 kJ mol^(-1) and 1485 kJ mol^(-1) respectively. The P-P bond energy in kJ mol^(-1) is

    The heats of combustion of CH_(4) and C_(4)H_(10) are -890.3 and -2878.7 kJ mol^(-1) , respectively. Which of the two has greater efficiency as fuel per gram?

    The enthalpy of combustion of methane, graphite and dihydrogen at 298 K are, -890.3 kJ mol^(-1) -393.5 kJ mol^(-1) , and -285.8 kJ mol^(-1) respectively. Enthapy of formation of CH_(4)(g) will be

    Red phosphorus is less reactive than yellow phosphorus because

    The heat of combustion of CH_(4)(g), C_(2)H_(6)(g) and H_(2)(g) are -890.3, -1559,7 and -285.9 kJ mol^(-1) , respectively. Which of these fuels is most efficient?