Thermodynamics ...

Distribution of energy in the spectrum of a black body can be correctly represented by ?

Two moles of an ideal gas, undergo the process shown in figure. $$AB$$ and $$CD$$ are adiabatic processes. The adiabatic exponent of the gas is?

one mole of an ideal gas at temperature T1 expends according to the law $$P/V^2 = a(constant)$$. the work done by the gas till the temperature of gas become T2 is:

Which of the following graphs correctly represents the variation of $$\beta =-\left( \dfrac { dv }{ dp }  \right) /V$$ with $$P$$ for an ideal gas at constant temperature?

When a gas in enclosed in a closed vessel was heated so as to increase its temperature by $$ 25^o C $$ its pressure was seen to have increased by 10% The initial temperature of the gas was nearly

when an ideal diatomic gas is heated at constant pressure, its initial energy increased by $$50cal$$ then the work done by the gas is:

A motor pump is delilvering water at certain rate.In order to increase the rate of delivery by100% ,the power of the motor is to be increased by

Which of the following statement about a thermodynamic process is wrong?

Heat of $$30\ kcal$$ is supplied to a system and $$4200\ J$$ of external work is done on the system so that its volume decreases at constant pressure. What is the change in its internal energy. $$(1 cal = 4.2 J)$$