If $150 J$ of heat is added to a system and the work done by the system is $110 J$, then change in internal energy will be .......... $J$
A$260 $
B$150 $
C$110 $
D$40 $
Easy
Download our app for free and get started
D$40 $
d (d) $\Delta Q = \Delta U + \Delta W$$ \Rightarrow \Delta U = \Delta Q - \Delta W = 150 - 110 = 40\;J$
Download our app
and get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
$300 \,cal$. of heat is given to a heat engine and it rejects $225 \,cal$. of heat. If source temperature is $227^{\circ} C$, then the temperature of sink will be____${ }^{\circ} C$.
The $P-V$ diagram shows seven curved paths (connected by vertical paths) that can be followed by a gas. Which two of them should be parts of a closed cycle if the net work done by the gas is to be at its maximum value
One mole of an ideal gas undergoes two different cyclic processes I and II, as shown in the $P-V$ diagrams below. In cycle I, processes $a, b, c$ and $d$ are isobaric, isothermal, isobaric and isochoric, respectively. In cycle II, processes $a^{\prime}, b^{\prime}, c^{\prime}$ and $d^{\prime}$ are isothermal, isochoric, isobaric and isochoric, respectively. The total work done during cycle I is $W_I$ and that during cycle II is $W_{I I}$. The ratio $W_I / W_{I I}$ is . . . .
Areversible adiabatic path on a $P-V$ diagram for an ideal gas passes through stateAwhere $P=0$.$7\times 10^5 \,\,N/ m^{-2}$ and $v = 0.0049 \,\,m^3$. The ratio of specific heat of the gas is $1.4$. The slope of path at $A$ is :