Question
A gas is compressed adiabatically, which one of the following statement is NOT true.
✓
Answer
(1) $\Delta Q=0$
(2) $\Delta Q =\Delta U +\Delta W$
$\Rightarrow \Delta U =-\Delta W$
adiabatic compression $( V \downarrow)$
$\Delta W =- ve \Rightarrow \Delta U =+ ve$
$\Delta U \uparrow \Rightarrow T \uparrow$
$\Delta U \neq 0$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Three similar wires of frequency $n_1, n_2$ and $n_3$ are joined to make one wire. Its frequency will be
→For the following circuit and given inputs $A$ and $B$, choose the correct option for output ' $Y$ '
→Let $\theta$ be the angle between vectors $\vec{A}$ and $\vec{B}$. Which of the following figures correctly represents the angle $\theta$ ?
→Two points on a travelling wave having frequency $500\, Hz$ and velocity $300\, m/s$ are $60^o$ out of phase, then the minimum distance between the two points is ..... $m$
→Two strings $X$ and $Y$ of a sitar produce a beat frequency $4 Hz$. When the tension of the string $Y$ is slightly increased the beat frequency is found to be $2 Hz.$ If the frequency of $X$ is $300 Hz,$ then the original frequency of $Y$ was .... $Hz$
→The period of oscillation of a magnet in vibration magnetometer is $2 \,sec$. The period of oscillation of a magnet whose magnetic moment is four times that of the first magnet is...$sec$
→An object is placed at a distance of $12 \,{cm}$ from a convex lens. A convex mirror of focal length $15 \,{cm}$ is placed on other side of lens at $8 \,{cm}$ as shown in the figure. Image of object coincides with the object.When the convex mirror is removed, a real and inverted image is formed at a position. The distance of the image from the object will be ..... $(cm)$
→What is the number of significant figures in $ 0.310\times 10^3$
→Starting from rest a body slides down a $45^o$ inclined plane in twice the time it takes to slide down the same distance in the absence of friction. The co-efficient of friction between the body and the inclined plane is:
→A solid sphere rolling without slipping on a horizontal rough surface and starts rising on inclined rough surface as shown in the figure assume pure rolling throughout the motion. Choose the $INCORRECT$ statement
→