Stoichiometry During a phase change process like sublimation, vaporisation, melting etc., the specific __________ does not change. Internal energy Gibbs free energy Entropy Enthalpy Internal energy Gibbs free energy Entropy Enthalpy ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Mass number of an atom is the sum of the numbers of Neutrons and electrons Protons and electrons Both A & B Neutrons and protons Neutrons and electrons Protons and electrons Both A & B Neutrons and protons ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry On addition of 1 c.c. of dilute hydrochloric acid (1% concentration) to 80 c.c. of a buffer solution of pH = 4, the pH of the solution becomes 2 8 4 1 2 8 4 1 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The osmotic pressure of a solution increases, if its __________ is decreased. None of these Solute concentration Volume Temperature None of these Solute concentration Volume Temperature ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Validity of the relationship, inputs = outputs, holds good for the system at steady state Without chemical reaction None of these Without chemical reaction & losses With chemical reaction Without chemical reaction None of these Without chemical reaction & losses With chemical reaction ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The heat evolved in the combustion of benzene is represented by the equation: C₆H₆ + 7.5 O₂ = 6CO₂ + 3H₂O, ΔH = 3264.6 kJ/kg. mole The heat energy change, when 39 gm of C₆H₆ is burnt in an open container, will be __________ kJ/kgmole. +816.15 -1632.3 +1632.3 -2448.45 +816.15 -1632.3 +1632.3 -2448.45 ANSWER DOWNLOAD EXAMIANS APP
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