A 1.250 g sample of octane (C18H18) is burnt in excess of oxygen in a

1.	A 1.250 g sample of octane (C18H18) is burnt in excess of oxygen in a bomb calorimeter. The temperature of calorimeter rises from 294.05 to 300.78 K. If heat capacity of the calorimeter is 8.93 kJ/K, find the heat transferred to calorimeter.
Answer» Mass of octane, m = 1.250 g = 0.00125 Heat capacity, c = 8.93 kJ/K Rise in temp, ΔT = 300.78 - 294.05 = 6.73 K Heat transferred to calorimeter = m x c x ΔT = 0.00125 x 8.93 x 6.73 = 0.075 kJ

A 1.250 g sample of octane (C18H18) is burnt in excess of oxygen in a bomb calorimeter. The temperature of calorimeter rises from 294.05 to 300.78 K. If heat capacity of the calorimeter is 8.93 kJ/K, find the heat transferred to calorimeter.

Answer»

Mass of octane, m = 1.250 g

= 0.00125

Heat capacity, c = 8.93 kJ/K

Rise in temp, ΔT = 300.78 - 294.05

= 6.73 K

Heat transferred to calorimeter

= m x c x ΔT

= 0.00125 x 8.93 x 6.73

= 0.075 kJ

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A 1.250 g sample of octane (C18H18) is burnt in excess of oxygen in a bomb calorimeter. The temperature of calorimeter rises from 294.05 to 300.78 K. If heat capacity of the calorimeter is 8.93 kJ/K, find the heat transferred to calorimeter.

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