The heat liberated when 1.89 { g} of benzoic acid is burnt in a bomb calorimeter at 25^\circ{C} increases the temperature of 18.94 { kg} of water by 0.632^\circ{C}. If the specific heat of water at 25^\circ{C} is 0.998 {cal} \/(g-{ }^\circ{C}), then find the heat of combustion of benzoic acid.

Correct Answer is : 3240 kJ mol−1

AP EAPCET 24-Aug-2021 Shift 2 Paper

Section: Chemistry

Question : 133 of 160

Marks: +1, -0

The heat liberated when 1.89 g of benzoic acid is burnt in a bomb calorimeter at 25°C increases the temperature of 18.94 kg of water by 0.632°C. If the specific heat of water at 25°C is 0.998cal∕(g−‌°C), then find the heat of combustion of benzoic acid.

2540 kJ mol−1
1975 kJ mol−1
3240 kJ mol−1
2825 kJ mol−1

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