Thermodynamics ...

In a given process on an ideal gas, dW = 0 and dQ < 0. Then for the gas

A carnot engine working between 300 K and 600 K has a work output of 800 J per cycle. The amount of heat energy supplied to the engine from the source in each cycle is

Which of he following processes is reversible?

Which of the following is incorrect regarding the first law of thermodynamics?

The temperature of a substance increases by 27^oC. What is the value of this increase of Kelvin scale ?

The first law of thermodynamics is concerned with the conservation of

A Containes that suits the occurrence of an isothermal process should be made of

A thermodynamic system is taken from an initial state i with internal energy U_i =100 J to the fmal state f along two different paths iaf and ibf as schematically shown in the figure. The work done by the system along the paths af, ,ib and bf are W_af = 200 J, W_ib = 50 J and W_bf =100 J, respectively. The heat supplied to the system along the path iaf, ,ib and bf are Q_iaf ,Q_ib and Q_bf respectively. If the internal energy of the system in the state b is U_b = 200 J and Q_iaf = 500 J, the ratio Q_bf/Q_ib is

An ideal gas is taken around PQRP as shown in the figure of p – V diagram. The work done during a cycle is

A sample of ideal monoatomic gas is taken round the cycle ABCA as shown in the figure. The work done during the cycle is