A jug contain 2 L of milk .calculate the volume of the milk in m3 .
1 Answers
Give reasons - lungs always contain residual volume of air.
1. Residual volume is the amount of gas remaining in the lungs of the and of a maximal exhalation.The lungs always contain a residual volume of air so that during...
1 Answers 1 views
Consider the following two statements : (A) Line spectra contain information about atoms. (B) Band spectra contain information about molecules.
(d) both A and B are correct.
1 Answers 1 views
A ferry boat has internal volume 1 m^3 and weight 50 kg. (a) Neglecting the thickness of the wood, find the fraction of the volume
(a) The volume of the boat immersed in water will be that volume of water which weight =50 kg. Since the density of water =1000 kg/m³, this volume will be...
1 Answers 1 views
A vessel A has volume V and a vessel B has volume 2V.
The correct answer is (a) pa = pb.
1 Answers 1 views
In a process on a system, the initial pressure and volume are equal to the final pressure and volume, In a process on a system,
The correct answer is (a) (b) (a) The initial temperature must be equal to the final temperature. (b) The initial internal energy must be equal to the final internal energy.
1 Answers 1 views
Calculate the volume occupied by 10 mole of CO2 at STP.
1 mol of CO2 at STP = 22.7 L 10 mole of CO2 at STP = 22.7 x 10 =227 L
1 Answers 1 views
20 mol of Chlorine gas occupies a volume of 800 mL at 300 K and 5 x 106 Pa pressure. Calculate the compressibility factor of the gas.
P = 5 x 106 Pa = 5 x 106 / 105 bar n = 20 T = 300 K R = 0.083 L bar K-1 mol-1 Vreal = 800 mL Videal = nRT/P Putting values ,...
1 Answers 1 views
Calculate the strength of 20 volume solution of hydrogen peroxide.
10 volume solution of H2O2 means that 1L of this H2O2 will give 10 L of oxygen at STP 2H2 O2 ( l) → O2( g) +2 H2O( l) 2×34 g ...
1 Answers 1 views
An organic compound contain 69% carbon and 4.8% hydrogen, the remaining being oxygen. Calculate the masses of carbon dioxide
Calculation of mass of CO2 produced: Mass of compound =0.20g %C =12 x C 69=12*mass of CO2 formed*100/44*0.2 Mass of CO2 formed =69*44*.2/12*100 = 0.506g Similarly, % H =2* mass of H2O formed*100/18*mass of compoun 4.8=2* mass...
1 Answers 1 views
A certain gas expands its volume from 3.0 L to 7.0 L at constant temperature. Calculate the work done by the gas if it expands,
(a) when gas expands into vacuum, P= 0 Therefore, w= -PΔV i.e w = 0 (b) If the external opposing pressure is 1.2 atm, then w= - PΔV W = -1.2(7.0-3.0) =-...
1 Answers 1 views