Molecular Physics | Thermodynamics Answers

two samples of gas is initially at same temp,pressure and volume. one sample is compressed from v to v/2 isothermally and other one is compressed from v to v/2 adiabatically then increase in pressure is more in adiabatic than in isothermal comp why???

two identical containers are connected by very narrow tube. if one container is filled with ideal gas at tempTand pressureP and other one is evacuated .when tube connecting is opened then temperature of gas donot change. why???

a) What is transport phenomenon? How does it arise? Derive an expression for the
coefficient of viscosity of a gas. Discuss its temperature and pressure dependence.

Calculate the work done against external atmospheric pressure when 1 g of water changes to
1672cm3
of steam. Take the atmospheric pressure as
1:013×105Nm−2

How many kg of coal are used to supply 1500 Watts to heat a barn for 7 hours? The
energy content of coal is 19 x 106 J/kg.

Calculate the work done by one mole of a van der waals gas if during its isothermal expansion its volume increases from 1m^3 to 2m^3 at a temperature 300k.take a=1.39×10^-6 atm m^6 mol^-2 and b= 39.1×10^-6m^3 mol^-1

One mole of oxygen at STP is adiabatically compressed to 5 atm. Calculate the final
temperature. Also, calculate the work done on the gas. Take g = 1.4 and
R = 8.31 J mol−1 K−1.

THE FRACTIONAL CHANGE IN INTERNAL ENERGY WHEN A GAS IS COOLED FROM 927°C TO 27°C IS :
1. 0.25
2. 0.75
3. 1
4. 0.67

N MOLES OF A MONOATOMIC GAS IS CARRIED AROUND THE REVERSIBLE RECTANGULAR CYCLE ABCDA AS SHOWN IN THE DIAGRAM. THE TEMPERATURE AT A IS To . THE THERMODYNAMIC EFFICIENCY OF THE CYCLE IS :
1. 15 %
2. 20 %
3. 25 %
4. 50 %

Tin melts at 232 under standard atmospheric pressure. Express this temperature in kelvin