Molecular Physics | Thermodynamics Answers

find the magnitude and ratio of internal energies for 5moles of mono-atomic gas to the di-atomic gas at temperature 27c

a quantity of 5 moles of an ideal gas at temperature 200c and suffers an increase of pressure from 2atm to 6atm without change of temperature find
1-initial and final volume
2-work done during this process and which do the work

calculate the root mean square velocity of molecule of hydrogen gas at room temperture 27c and calculate the mean kinetick energy of one molecule and one mole

a quantity 4.3 liter of an ideal gas at pressure 2atm is compressed adiabatically to volume 1 liter find
1-the final pressure
2-work done the gas
take gama constant is 1.4

if the temperature of a diatomic ideal gas initialy at T and cooled to 1/4T calculate
1-the ratio of root mean square velocities and ratio of mean kinetic energies in two states
2-Cp,Cv and gama constant of the gas

a tank having volume of 0.1m^3 contains helium gas at 150atm and fixed temperature at 27c calculate
1-how many ballons can the tank blow up if each field ballons is a shpere 0.3m in diameter at an absolute pressure of 1.2atm at the same temperature
2-the work done and which do the work
3-the change in internal energy
4-the quantity of heat and is this must added or removed

two different plates A and B are in composit wall each of dimension 20cm*30cm and their thickness are 3cm and 8cm respectively.thermal conductivity are 0.25 and 0.85 in C.G.S system calculate
1-the thermal resistance of each plate
2-if the free end of plate A at temperature 150c and plate B at temperature 20c calculate the heat current through the combination
3-the temperature of the point of junction
4-the temperature gradient of each plate

a 600 gm of helium gas occupy 2 liters at 80c suddenly expanded (adiabatic) to volume 3 liter calculate
1-molar heat capacities at constant volume and at constant pressure and gama constant
2-intial pressure
3-final temperature an pressure
4-change in root mean square velocity
5-change in mean kinetic energy of molecule
6-change in molar kinetic energy
7-change in internal energy and its sign
8-the mechanical work
9-what does this work

Q.1 and 2
https://drive.google.com/file/d/0B1f-P0kkAkRVdXpIbGVscFQ2dlJyNHk4RTZDbFF1RklrVDVn/edit?usp=sharing

an electric resistance carrying electric current 2A and potential difference 50V immersed in 200g of water durin 5 minutes
find
1-the change in termperature of water at the end of time
2-the rate of heat follow
3-the temperature rate