In which of the following processes, heat is neither absorbed nor released by a system ?
A
isothermal
B
adiabatic
C
isobaric
D
isochoric
NEET 2019, Easy
Download our app for free and get started
B
adiabatic
b Adiabatic process
$\Delta Q=0$
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.*
A Carnot engine takes $6000 \,cal$ of heat from a reservoir at $627^{\circ} C$ and gives it to a sink at $27^{\circ} C$. The work done by the engine is ......... $kcal$
$Assertion :$ The heat supplied to a system is always equal to the increase in its internal energy.
$Reason :$ When a system changes from one thermal equilibrium to another, some heat is absorbed by it.
The coefficient of performance of a refrigerator is $5.$ If the temperature inside freezer is $-20^o C,$ the temperature of the surroundings to which it rejects heat is ........ $^oC$
Two cylinders contain same amount of ideal monatomic gas. Same amount of heat is given to two cylinders. If temperature rise in cylinder $A$ is $T_0$ then temperature rise in cylinder $B$ will be .........
The volume of a gas is reduced adiabatically to $\frac{1}{4}$ of its volume at $27°C$, if the value of $\gamma = 1.4,$ then the new temperature will be