In a normal person expiratory reserve volume and residual volume were found to be 1000 ml and 1100 ml respectively. How the functional residual capacity differ from the vital capacity?

In a normal person expiratory reserve volume and residual volume were found to be 1000 ml and 1100 ml respectively. Find out his functional residual capacity?

10 ml of a gaseous hydrocarbon were mixed with 100 ml of oxygen and exploded in a eudiometre tube. The volume of residual gases was 95 ml of which 20 ml was absorbed by caustic soda and the remainder by pyragallol. The molecular formula of the hydrocarbon is

1.22 g of benzoic acid on combustion in a Bomb calorimeter was found to raise the temperature of the calorimeter system from 298 K to 298.5 K. If the heat capacity of calorimeter system is 64.5 kJ, heat of combustion of benzoic acid at constant volume is

50 ml 10 N H_(2)SO_(4) , 25 ml 12N HCl and 40 ml 5N HNO_(3) were mixed together and the volume of the mixture was made 1000 ml by adding water. The normality of the resultant solution will be :

The stroke volume of a normal person is 70 ml/min. Find out his cardiac output ? (Hint: Cardiac output = stroke volume x No. of heart beats/min.)