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$100\ g$ of water is heated from $30^o\ C$ to $50^o\ C$ Ignoring the slight expansion of the water, the change in its internal energy is ...... $kJ$ (specific heat of water is $4184\ J/kg/K$)
One mole of an ideal gas at $27^{\circ} {C}$ is taken from ${A}$ to ${B}$ as shown in the given ${PV}$ indicator diagram. The work done by the system will be $......\times 10^{-1} \,{J}$
[Given : $R=8.3\, {J} /\,mole\,{K}, \ln 2=0.6931$ ] (Round off to the nearest integer)
One mole of a perfect gas in a cylinder fitted with a piston has a pressure $P,$ volume $V$ and temperature $T.$ If the temperature is increased by $1 \,K$ keeping pressure constant, the increase in volume is
The heat energy required to raise the temperature of $5\,moles$ of an ideal gas to $5\,K$ at constant pressure is $600\,J$ . How much heat (in $J$ ) is required to raise the same mass of the same gas to $5\,K$ at constant volume ? (Take $R = 8.3\,J/mole-^oK$ )
If a gas is taken from $A$ to $C$ through $B$ then heat absorbed by the gas is $8 \,J$. Heat absorbed by the gas in taking it from $A$ to $C$ directly is ............. $J$