Chemistry

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…

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…

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…

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…

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…

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…

An open system

An open system Options (a) can neither lose nor gain energy (b) can lose or gain energy (c) can gain…

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…

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 =…

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…