For spontaneous cooling of a hot metal rod (system) in air
For spontaneous cooling of a hot metal rod (system) in air Options (a) ΔSsystem > 0,ΔSunivers < 0 (b) ΔSsystem…
5 years ago
Thermodynamics
For a thermodynamically reversible reaction in a galvanic cell at temperature T,
For a thermodynamically reversible reaction in a galvanic cell at temperature T, which one of the following is false Options…
5 years ago
The difference between ΔH and ΔE at 300 K for the reaction
The difference between ΔH and ΔE at 300 K for the reaction C₃H₈(g) + 5O₂(g) → 3CO₂(g) + 4H₂O(l) Options…
5 years ago
Which of the following statement is false for an isothermal expansion
Which of the following statement is false for an isothermal expansion of an ideal gas Options (a) Average kinetic energy…
5 years ago
The heat of neutralization is the highest in the following case
The heat of neutralization is the highest in the following case Options (a) a strong acid and a weak base…
5 years ago
An open system
An open system Options (a) can neither lose nor gain energy (b) can lose or gain energy (c) can gain…
5 years ago
At 298 K the enthalpy of formation of liquid water is -285.9 kJ/mol
At 298 K the enthalpy of formation of liquid water is -285.9 kJ/mol and that of steam -242.8 kJ/mol. The…
5 years ago
For a spontaneous process, entropy always
For a spontaneous process, entropy always Options (a) increases (b) decreases (c) keeps changing (d) remains unchanged Correct Answer: increases…
5 years ago
Which expression is correct for the work done in adiabatic reversible expansion
Which expression is correct for the work done in adiabatic reversible expansion of an ideal gas Options (a) W =…
5 years ago
Heat produced on burning 6.3 g of a fule raises the temperature of 1.5 kg
Heat produced on burning 6.3 g of a fule raises the temperature of 1.5 kg of water from 30⁰C to…
5 years ago