Recent content by nafo man

Homework Statement what is the different in term of definition between Heat capacity and Specific heat capacity ? Homework Equations Q=mΔTC →C=Q/mΔT The Attempt at a Solution Specific heat capacity is the amount needed per unit mass of material so is a number independent of the...

type of law applies to :isobaric,isochoric,isothermal ? what parameter stays constant during isobaric,isochoric,isothermal? what Expressions stays constant during isobaric,isochoric,isothermal?

Homework Statement what is the type of law that applies for this change? Homework Equations Isobaric,Isochoric ,IsothermalThe Attempt at a Solution the parameters which stays constant during the change for isobaric is pressure and its a first law of thermodynamic.for isochoric is volume and...

the value of R=0.082 is in litre n=1200/24.6 =48.78 I hope this is the right answer

am i on right track?

1200 / 2493 = 0.481347774

n=PV/RT P=1.5x10^6 V=0.8x10^-3 T=300 k R=8.31 n=(1.5x10^6 x 0.8x10^-3)/8.31x300)

if i am using atm and liters, then the value of R to use is 0.082L atm/mol K ?

i am not sure,where did i go wrong?

Homework Statement A gas cylinder contains of 0.8 × 10^-3 m^3 volume oxygen.the temperature of the oxygen is 320k,and the pressure of the gas is 1.5 × 10^6 Pa.how to calculate: number of moles and molecules of Oxygen? mass of Oxygen if its molar mass is 32.0 × 10^-3 kg ? The mass of a single...

in that case what would happen to the temperature within system?

the part which is confusing me is the 1st law of thermodynamics say,the work is done by the system ,but the question clearly say the work is done on the system. will it not have effect on the temperature within system?

Homework Statement What happens to the internal energy of a system and its temperature when mechanical work is done on it? Homework Equations ΔU=Q-W The Attempt at a Solution First Law of Thermodynamics say:the change in internal energy of the system is equal to the heat added to the...