A gas (Molar mass = 280 g mol-1) was burnt in excess O2 in a constant volume calorimeter and during combustion the temperature of calorimeter increased from 298.0 K to 298.45K. If the heat capacity of calorimeter is 2.5 kJ K-1 and enthalpy of combustion of gas is 9 kJ mol-1 the amount of gas burnt is _____________g. (Nearest Integer)
A gas (Molar mass = 280 g mol-1) was burnt in excess O2 in a constant volume calorimeter and during combustion the temperature of calorimeter increased from 298.0 K to 298.45K. If the heat capacity of calorimeter is 2.5 kJ K-1 and enthalpy of combustion of gas is 9 kJ mol-1 the amount of gas burnt is _____________g. (Nearest Integer)
Let x gm is burnt
Moles = x/280
Heat released by x/280 mol = 2.5 * 0.45 kJ
Heat released by 1 mol =
x = 35 gm
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Chemistry Ncert Solutions Class 11th 2023
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