Question
Consider the following processes :
For B+D
E+2C, 
will be-
- 325 kJ/mol
- 525 kJ/mol
- -175 kJ/mol
- -325 kJ/mol
The correct answer is: -175 kJ/mol
Related Questions to study
From the following bond energies :
bond energy : 
bond energy : 
bond energy : 
bond energy : 
Enthalpy for the reaction,
will be:
From the following bond energies :
bond energy :
bond energy :
bond energy :
bond energy :
Enthalpy for the reaction,
will be:
For a phase change 
For a phase change
The heat change during the reaction 24 gC and 128 gS following the change 
cal
The heat change during the reaction 24 gC and 128 gS following the change cal
In which reaction ΔS is positive -
In which reaction ΔS is positive -
The heat of combustion of ethanol determined in a bomb calorimeter is -670.48 K. Cals mole-1 at 25°C. What is at 25°C for the reaction-
The heat of combustion of ethanol determined in a bomb calorimeter is -670.48 K. Cals mole-1 at 25°C. What is at 25°C for the reaction-
The binding energies per nucleon of 
and 
are 5.6 MeV and 7.06 MeV respectively, then the energy of the reaction 
will be
The binding energies per nucleon of and are 5.6 MeV and 7.06 MeV respectively, then the energy of the reaction will be
Which of the following is true for a sample of isotope containing 
and 
Which of the following is true for a sample of isotope containing and
When a hydrogen atom emits a photon in going from n =5 to n = 1, its recoil speed is almost
When a hydrogen atom emits a photon in going from n =5 to n = 1, its recoil speed is almost
Statement 1: Density of all the nuclei is same
Statement 2: Radius of nucleus is directly proportional to the cube root of mass number
Statement 1: Density of all the nuclei is same
Statement 2: Radius of nucleus is directly proportional to the cube root of mass number
Statement 1: The mass of a nucleus can be either less than or more than the sum of the masses of nucleons present in it
Statement 2: The whole mass of the atom is considered in the nucleus
Statement 1: The mass of a nucleus can be either less than or more than the sum of the masses of nucleons present in it
Statement 2: The whole mass of the atom is considered in the nucleus
Statement 1: Hydrogen atom consists of only one electron but its emission spectrum has many lines
Statement 2: Only Lyman series is found in the absorption spectrum of hydrogen atom whereas in the emission spectrum, all the series are found
Statement 1: Hydrogen atom consists of only one electron but its emission spectrum has many lines
Statement 2: Only Lyman series is found in the absorption spectrum of hydrogen atom whereas in the emission spectrum, all the series are found
Statement 1: The ionizing power of 
particle is less compared to 
particles but their penetrating power is more
Statement 2: The mass of particle is less than the mass of particle
Statement 1: The ionizing power of particle is less compared to particles but their penetrating power is more
Statement 2: The mass of particle is less than the mass of particle
Statement 1: For the scattering of particles at large angles, only the nucleus of the atom is responsible
Statement 2: Nucleus is very heavy in comparison to electrons
Statement 1: For the scattering of particles at large angles, only the nucleus of the atom is responsible
Statement 2: Nucleus is very heavy in comparison to electrons
Statement 1: Isobars are the element having same mass number but different atomic number
Statement 2: Neutrons and protons are present inside nucleus
Statement 1: Isobars are the element having same mass number but different atomic number
Statement 2: Neutrons and protons are present inside nucleus
Statement 1: The mass of particles when they are emitted is higher than the mass of electrons obtained by other mean
Statement 2: particle and electron, both are similar particles
Statement 1: The mass of particles when they are emitted is higher than the mass of electrons obtained by other mean
Statement 2: particle and electron, both are similar particles
